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1197篇 您的检索式:作者名="Qing Wei"
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1Incidence trend of nasopharyngeal carcinoma from 1987 to 2011 in Sihui County,Guangdong Province,South China:an age-period-cohort analysis显示文摘Introduction:In the past several decades,declining incidences of nasopharyngeal carcinoma(NPC) have been observed in Chinese populations in Hong Kong,Taiwan,Los Angeles,and Singapore.A previous study indicated that the incidence of NPC in Sihui County,South China remained stable until 2002,but whether age,diagnosis period,and birth cohort affect the incidence of NPC remains unknown.Methods:Age-standardized rates(ASRs) of NPC incidence based on the world standard population were examined in both males and females in Sihui County from 1987 to 2011.Joinpoint regression analysis was conducted to quantify the changes in incidence trends.A Poisson regression age-period-cohort model was used to assess the effects of age,diagnosis period,and birth cohort on the risk of NPC.Results:The ASRs of NPC incidence during the study period were 30.29/100,000 for males and 13.09/100,000 for females.The incidence of NPC remained stable at a non-significant average annual percent change of 0.2%for males and-1.6%for females throughout the entire period.A significantly increased estimated annual percent change of 6.8%(95%confidence interval,0.1%-14.0%) was observed from 2003 to 2009 for males.The relative risk of NPC increased with advancing age up to 50-59 and decreased at ages >60 years.The period effect curves on NPC were nearly flat for males and females.The birth cohort effect curve for males showed an increase from the1922 cohort to the 1957 cohort and a decrease thereafter.In females,there was an undulating increase in the relative risk from the 1922 cohort to the 1972 cohort.Conclusions:The incidence trends for NPC remained generally stable in Sihui from 1987 to 2011,with an increase from 2003 to 2009.The relative risks of NPC increased in younger females.Li-Fang Zhang Yan-Hua Li Shang-Hang Xie Wei Ling Sui-Hong Chen Qing Liu Qi-Hong Huang Su-Mei Cao 2015Chinese Journal of Cancer2015,34,8:47
2In vitro derivation of functional insulin-producing cells from human embryonic stem cells显示文摘为人的胚胎的茎(ES ) 的自强和区别的能力细胞为对待类型 Idiabetes mellitus 为胰腺的贝它细胞的产生使他们成为潜在的来源。这里,我们报导一最新发展了并且有效方法,在aserum免费的系统执行了,区分进生产胰岛素的 cells.Activin A 的导致的人的 ES 房间它在起始的阶段被使用从人的 EScells 导致权威的内胚叶区别,是由权威的内胚叶标记 Sox17 和 Brachyury.Further 的表示检测了, all-trans retinoic 酸( RA )被用来支持胰腺的区别,由早胰腺的抄写因素 pdx1 和 hlxb9 的表示显示了。在成熟 inDMEM/F12 以后有 bFGF 和菸碱的没有浆液的媒介,区分的房间表示了小岛特定的标记象 C 肽,胰岛素,胰高血糖素和 glut2 那样。百分比 ofC-peptide-positive 房间超过了 15% 。由这些房间的胰岛素和 C 肽的分泌物在葡萄糖层次对应于变化。当移植了进肾的囊时, ofStreptozotocin (STZ ) 对待裸体老鼠,这些区分的人的 ES 房间熬过并且维持贝它房间标记基因的表示包括 C 肽, pdx1, glucokinase, nkx6.1, IAPP, pax6and Tcf1。百分之三十只移植裸体老鼠展出了 stableeuglycemia 的明显的恢复;并且改正的显型被支撑超过六个星期。我们的新方法为学习人的胰开发的机制提供一个有希望的试管内区别模特儿并且说明为类型 Idiabetes mellitus 的处理使用人的 ES 房间的潜力。Wei Jiang Yan Shi Dongxin Zhao Song Chen Jun Yong Jing Zhang Tingting Qing Xiaoning Sun Peng Zhang Mingxiao Ding Dongsheng Li Hongkui Deng 2007Cell Research2007,17,4:38
3Present and future of prophylactic antibiotics for severe acute pancreatitis显示文摘AIM: To investigate the role of prophylactic antibiotics in the reduction of mortality of severe acute pancreatitis (SAP) patients, which is highly questioned by more and more randomized controlled trials (RCTs) and metaanalyses. METHODS: An updated meta-analysis was performed. RCTs comparing prophylactic antibiotics for SAP with control or placebo were included for meta-analysis. The mortality outcomes were pooled for estimation, and re-pooled estimation was performed by the sensitivity analysis of an ideal large-scale RCT. RESULTS: Currently available 11 RCTs were included. Subgroup analysis showed that there was significant reduction of mortality rate in the period before 2000, while no significant reduction in the period from 2000 [Risk Ratio, (RR ) = 1.01, P = 0.98]. Funnel plot indi-cated that there might be apparent publication bias in the period before 2000. Sensitivity analysis showed that the RR of mortality rate ranged from 0.77 to 1.00 with a relatively narrow confidence interval (P < 0.05). However, the number needed to treat having a minor lower limit of the range (7-5096 patients) implied that certain SAP patients could still potentially prevent death by antibiotic prophylaxis. CONCLUSION: Current evidences do not support prophylactic antibiotics as a routine treatment for SAP, but the potentially benefited sub-population requires further investigations.Kun Jiang Wei Huang Xiao-Nan Yang Qing xia 2012World Journal of Gastroenterology2012,18,3:37
4Apoptosis induced by norcantharidin in human tumor cells显示文摘INTRODUCTIONThe antitumor activity of norcantharidin (NCTD),the demethylated analogue of cantharidin,wasstudied in the early 1980s in China.NCTD has noside effects on urinary organs which cantharidin hasshown and is easier to synthesize,and it can inhibitthe proliferation of several tumor cell lines as wellas transplanted tumors.Clinical trials with NCTD asa monotherapeutic agent indicated that NCTD hadbeneficial effects in patients with different kindsZhen Xiao Sun Qing Wen Ma Tian De Zhao Yu Lin Wei Guang Sheng Wang Jia Shi Li 2000World Journal of Gastroenterology2000,6,2:31
5Artemisinin analogue SM934 ameliorates DSS- induced mouse ulcerative colitis via suppressing neutrophils and macrophages显示文摘Yu-xi YAN Mei-juan SHAO Qing QI Yan-sheng XU Xiao-qian YANG Feng-hua ZHU Shi-jun HE Pei-lan HE Chun-lan FENG Yan-wei WU Heng LI Wei TANG Jian-ping ZUO 2018Acta Pharmacologica Sinica2018,39,10:32
6Effects of large dose of dexamethasone on inflammatory mediators and pancreatic cell apoptosis of rats with severe acute pancreatitis显示文摘AIM: To investigate the influence of high dose of dexamethasone on inflammatory mediators and apoptosis of rats with severe acute pancreatitis (SAP). METHODS: SAP rats were randomly assigned to the model group and treatment group while the normal rats were assigned to the sham operation group. The mortality,ascite volumes,ascites/body weight ratio and pancreas pathological changes of all rats were observed at 3,6 and 12 h after operation. Their contents of amylase and endotoxin in plasma and contents of tumor necrosis factor (TNF-α),phospholipase A2 (PLA2) and IL-6 in serum were also determined. The microarray sections of their pancreatic tissues were prepared,terminal transferase dUTP nick end labeling (TUNEL) staining was performed and apoptotic indexes were calculated. RESULTS: There was no marked difference between treatment group and model group in survival. The contents of amylase and endotoxin in plasma and contents of TNF-α,PLA2 and IL-6 in serum,ascite volumes,ascites/body weight ratio and pancreas pathological scores were all lower in treatment group than in model group to different extents at different time points P < 0.05,58.3 (26.4) ng/L vs 77.535 (42.157) ng/L in TNF-α content,8.00 (2.00) points vs 9.00 (2.00) points in pathological score of pancreas respectively; P < 0.01,0.042 (0.018) EU/mL vs 0.056 (0.0195) EU/mL in endotoxin content,7791 (1863) U/L vs 9195 (1298) U/L in plasma amylase content,1.53 (0.79) vs 2.38 (1.10) in ascites/body weight ratio,8.00 (1.00) points vs 11.00 (1.50) points in pathological score of pancreas; P < 0.001,3.36 (1.56) ng/L vs 5.65 (1.08) ng/L in IL-6 content,4.50 (2.00) vs 7.20 (2.00),4.20 (1.60) vs 6.40 (2.30),3.40 (2.70) vs 7.90 (1.70) in ascite volumes,respectively. The apoptotic indexes of pancreas head and pancreas tail were all higher in treatment group than in model group at 6 h P < 0.01,0.00 (2.00)% vs 0.00 (0.00)%,0.20 (1.80) vs 0.00 (0.00) in apoptosis indexes,respectively. CONCLUSION: The mechanism of dexamethasone treatment in acute pancreatitis is related to its inhibition of inflammatory mediator generation and induction of pancreatic acinar cell apoptosis.Xi-Ping Zhang Li Chen Qi-Fang Hu Hua Tian Ru-Jun Xu Zhi-Wei Wang Ke-Yi Wang Qi-Hui Cheng Wei Yan Yun Li Qing-Yu Li Qing He Fei Wang 2007World Journal of Gastroenterology2007,13,41:29
7Inhibition of the B7-H3 immune checkpoint limits tumor growth by enhancing cytotoxic lymphocyte function显示文摘在肿瘤和免疫系统之间的相互作用仍然糟糕被理解。重要临床的回答在对 CTLA4 和 PD-1/PD-L1 检查点与抗体对待的癌症病人被完成了;然而,仅仅病人的小部分对治疗作出回应,显示需要探索为癌症治疗的另外的 co 禁止的分子。B7-H3, B7 总科的一个成员,被我们以前显示出禁止 T 房间激活和 autoimmunity。在这研究,我们在肿瘤免疫分析了 B7-H3 的功能。B7-H3 的表示在多重肿瘤线,渗入肿瘤的树枝状的房间,和巨噬细胞被发现。与对抗抗体对待到 B7-H3 的 B7-H3-deficient 老鼠或老鼠显示出多重肿瘤的减少的生长,它取决于 NK 和 CD8 + T 房间。与细胞毒素的淋巴细胞表示的通常认为的受体, B7-H3 禁止了他们的激活,并且它的缺乏在忍受肿瘤的鼠标导致了增加的细胞毒素的淋巴细胞功能。B7-H3 和 PD-1 的联合封锁导致了迟了阶段的肿瘤的进一步提高的治疗学的控制。一起拿,我们的结果显示 B7-H3 检查点可以对癌症为免疫疗法用作一个新奇目标。Young-hee Lee Natalia Martin-Orozco Peilin Zheng Jing Li Peng Zhang Haidong Tan Hyun Jung Park Mira Jeong Seon Hee Chang Byung-Seok Kim Wei Xiong Wenjuan Zang Li Guo Yang Liu Zhong-jun Dong Willem W Overwijk Patrick Hwu Qing Yi Larry Kwak Zhiying Yang Tak W Mak Wei-Li Laszlo G Radvanyi Ling Ni Dongfang Liu Chen Dong 2017Cell Research2017,27,8:29
8Ablation of gut microbiota alleviates obesity-induced hepatic steatosis and glucose intolerance by modulating bile acid metabolism in hamsters显示文摘Since metabolic process differs between humans and mice, studies were performed in hamsters, which are generally considered to be a more appropriate animal model for studies of obesityrelated metabolic disorders. The modulation of gut microbiota, bile acids and the farnesoid X receptor(FXR) axis is correlated with obesity-induced insulin resistance and hepatic steatosis in mice. However,the interactions among the gut microbiota, bile acids and FXR in metabolic disorders remained largely unexplored in hamsters. In the current study, hamsters fed a 60% high-fat diet(HFD) were administeredvehicle or an antibiotic cocktail by gavage twice a week for four weeks. Antibiotic treatment alleviated HFD-induced glucose intolerance, hepatic steatosis and inflammation accompanied with decreased hepatic lipogenesis and elevated thermogenesis in subcutaneous white adipose tissue(sWAT). In the livers of antibiotic-treated hamsters, cytochrome P450 family 7 subfamily B member 1(CYP7 B1) in the alternative bile acid synthesis pathway was upregulated, contributing to a more hydrophilic bile acid profile with increased tauro-β-muricholic acid(TβMCA). The intestinal FXR signaling was suppressed but remained unchanged in the liver. This study is of potential translational significance in determining the role of gut microbiota-mediated bile acid metabolism in modulating diet-induced glucose intolerance and hepatic steatosis in the hamster.Lulu Sun Yuanyuan Pang Xuemei Wang Qing Wu Huiying Liu Bo Liu George Liu Min Ye Wei Kong Changtao Jiang 2019Acta Pharmaceutica Sinica B2019,9,4:29
9Production of high-quality agarwood in Aquilaria sinensis trees via whole-tree agarwood-induction technology显示文摘我们使用了整个树的 agarwood 感应的技术在 20 个月以内从 Aquilaria sinensis 树生产 agarwood,并且评估了这 agarwood 的质量。结果证明它的特征以质地,化学成分,香精油内容,和乙醇可溶的摘录内容类似于高级野 agarwood 的那些,与远超过繁体中文药 agarwood 的要求的最後的质量,作为在中国药典 2010 显示了。就我们的知识而言,这是第一研究证明高质量的 agarwood 能在整个 A 被生产。经由一种化学上导致的技术的 sinensis 树。Xing Li Zhang Yang Yang Liu Jian He Wei Yun Yang Zheng Zhang Jun Qing Huang Huai Qiong Chen Yu Jun Liu 2012Chinese Chemical Letters2012,23,6:28
10Inducing apoptosis and upregulation of Bax and Fas ligand expression by allicin in hepatocellular carcinoma in Balb/c nude mice显示文摘ZHANG Zhi-mian ZHONG Ning GAO Hai-qing ZHANG Shang-zhong WEI Yuan XIN Hua MEI Xing HOU Huai-shui LIN Xi-yun SHI Qing 2006Chinese Medical Journal2006,,5:24
11Protective effects of polydatin against CCl_4-induced injury to primarily cultured rat hepatocytes显示文摘NTRODUCTIONPolygonumcuspidatumSieb.etZucc.(Polygonaceae)isatraditionalChineseherbaldrug,withbitertasteandcoldnature.Itmainly...HUANG Zhao Sheng, WANG Zong Wei, LIU Ming Ping, ZHONG Shi Qing, LI Qiao Mei and RONG Xiang Lu 1999World Journal of Gastroenterology1999,5,1:24
12Indoor Allergen Levels and Household Distributions in Nine Cities Across China显示文摘Objective Chinese allergic subjects have high levels of sensitization to house dust mite(HDM) and other indoor allergens. This study quantifies common indoor allergen levels in Chinese households. Methods Dust samples were collected from nine cities. Major allergens Der p 1 and Der f 1 from Dermatophagoides pteronyssinus and D. farinae, and specific antigens of Blomia tropicalis, Tyrophagus putrescentiae, Acarus siro, and cockroach species Blattella germanica and Periplaneta americana were measured by ELISA. Results HDM allergens were found in dust samples from bedding in 95% of the Chinese households. The median levels varied from <0.006 to 9.2 μg/g of dust, depending on the city. The percentages of households having HDM allergen levels associated with the risk of developing allergy sensitization and asthma were 65% and 25%, respectively. Specific antigens of the storage mite and cockroach were only found in samples from the southern and tropical regions of China. Levels of mite allergens were generally higher in samples from bedding compared to samples from the living room, even for storage mites, whereas levels of cockroach antigens were higher in the living room samples. Conclusion HDM allergens are present in bedding dust samples from most Chinese households. Cities in southern and central China have relatively high levels of HDM major allergens compared to cities in northern and western China. Antigens of storage mites and cockroaches are not as common as HDM allergens.ZHENG Yi Wu LAI Xu Xin ZHAO De Yu ZHANG Chun Qing CHEN Jian Jun ZHANG Luo WEI Qing Yu CHEN Shi LIU En Mei NORBACK Dan GJESING Birgitte ZHONG Nan Shan SPANGFORT D.Michael 2015Biomedical and Environmental Sciences2015,28,10:24
13Segmental transcatheter arterial embolization for primary hepatocellular carcinoma显示文摘INTRODUCTIONSegmentaltranscatheterarterialembolization(SLpTAE)hasbecomeoneofexcelentinterventionalmethodsforprimaryhepatocel...LI Li, WU Pei Hong, LI Jin Qing, ZHANG Wei Zhang, LIN Hao Gao and ZHANG Ya Qi 1998World Journal of Gastroenterology1998,4,6:22
14Liguzinediol improved the heart function and inhibited myocardial cell apoptosis in rats with heart failure显示文摘Yu LI Ping SONG Qing ZHU Qiu-yi YIN Jia-wen JI Wei LI Hui-min BIAN 2014Acta Pharmacologica Sinica2014,35,10:23
15The Reference Genome Sequence of Scutellaria baicalensis Provides Insights into the Evolution of Wogonin Biosynthesis显示文摘Scutellaria baicalensis Georgi is important in Chinese traditional medicine where preparations of dried roots,'Huang Qin,' are used for liver and lung complaints and as complementary cancer treatments. We report a high-quality reference genome sequence for S. baicalensis where 93% of the 408.14-Mb genome has been assembled into nine pseudochromosomes with a super-N50 of 33.2 Mb. Comparison of this sequence with those of closely related species in the order Lamiales, sesamum indicum and Salvia splendens,revealed that a specialized metabolic pathway for the synthesis of 4'-deoxyflavone bioactives evolved in the genus Scu-tellaria. We found that the gene encoding a specific cinnamate coenzyme A ligase likely obtained its newfunc- tion following recent mutations, and that four genes encoding enzymes in the 4'-deoxyflavone pathway are present as tandem repeats in the genome of S. baicalensis. Further analyses revealed that gene duplications, segmental duplication, gene amplification, and point mutations coupled to gene neo- and subfunctionaliza-tions were involved in the evolution of 4'-deoxyflavone synthesis in the genus Scutellaria. Our study not only provides significant insight into the evolution of specific flavone biosynthetic pathways in the mint family, Lamiaceae, but also will facilitate the development of tools for enhancing bioactive productivity by metabolic engineering in microbes or by molecular breeding in plants. The reference genome of S. baicalensis is also useful for improving the genome assemblies for other members of the mint family and offers an important foundation for decoding the synthetic pathways of bioactive compounds in medicinal plants.Qing Zhao Jun Yang Meng-Ying Cui Jie Liu Yumin Fang Mengxiao Yan Wenqing Qiu Huiwen Shang Zhicheng Xu Reheman Yidiresi Jing-Ke Weng Tomas Pluskal Marielle Vigouroux Burkhard Steuernagel Yukun Wei Lei Yang Yonghong Hu Xiao-Ya Chen Cathie Martin 2019Molecular Plant2019,12,7:23
16Regeneration of 2-amino-2-methyl-1-propanol used for carbon dioxide absorption显示文摘为了改进二氧化碳的效率骑车,处理并且减少新生能量消耗,一个位的联盟者妨碍了 2-amino-2-methyl-1-propranol (安培) 的胺被调查作为 CO2 吸收剂决定它的新生行为。CO2 吸收和胺新生特征试验性地在各种各样的操作条件下面被检验。新生效率在 358 ~ 403 K 的温度范围期间从 86.2% ~ 98.3% 增加了。为安培的最合适的新生温度是 383 K,处于这个实验条件,并且吸收 / 新生的新生效率变从 98.3% ~ 94.0% 下降了。很多热马厩盐(HSS ) 能在 CO2 吸收容量和新生效率引起减小。结果显示水的安培更容易比另外的胺与吸收容量的更少的损失再生,例如,单音的乙醇胺(MEA ) , diethanolamine (DEA ) , diethylenetriamine (DETA ) ,和 N-methyldiethanolamine (MDEA ) 。ZHANG Pei SHI Yao WEI Jianwen ZHAO Wei YE Qing 2008Journal of Environmental Sciences2008,20,1:21
17Intranasal recombinant human erythropoietin protects rats against focal cerebral ischemia显示文摘Yue - Ping Yu Qiu - Qin Xu Qi Zhang Wei - Ping Zhang Li - Hui Zhang Er - Qing Wei 2005中国药理通讯2005,22,4:20
18Studies on mechanism of Sialy Lewis-X antigen in liver metastases of human colorectal carcinoma显示文摘INTRODUCTIONSialyl Lewis-X antigen ,correlated with carcinoma, is a group of carbohydrate antigen containing oligosaccharide expressed of embryonic tisue and glycoproteins on cell surface of embryonic tissue[1].The SLeX antigen located on cell surface is synthesized principally by two enzymes ,al ,3fucosyltransfrease and a2, 3sialyctransferase.In adults ,SLeX antigen is expressed principally on the surfaces of granulocytic cells and some tumor cells .Xiao Wei Li~1 Yan Qing Ding~1 Jun Jie Cai~1 Shao Qing Yang~2 Lian Bing An~3 Dong Fang Qiao~3 ~1Department of Pathology,Nanfang Hospital of the First Military Medical University,Guangzhou 510515,Guangdong Province,China ~2The Northern Hospital of PLA,Shenyang 110015,Liaoning Province,China ~3Department of Electronmicroscopy,First Military Medical University,Guangzhou 510515,Gangdong Province,ChinaDr.Xiao Wei Li graduated from the First Military Medical University with a MM degree in 1999.Physician in Charge of pathology,having 6 papers published. 2001World Journal of Gastroenterology2001,7,3:19
19High-speed maneuvering target detection approach based on joint RFT and keystone transform显示文摘Increasing the integration time is an effective method to improve small maneuvering target detection performance in radar applications.However,range migration and Doppler spread caused by maneuvering target motion during the integration time make it difficult to improve the coherent accumulation of target's energy and detection performance.In this study,a new method based on Radon Fourier transform(RFT) and keystone transform(KT) for high-speed maneuvering target detection is proposed.The proposed algorithm utilizes second-order KT to correct the range curvature,and the improved dechirping method to compensate for the Doppler spread.RFT is then used to correct the range walk for target coherent detection.The method is capable of correcting the range migration and the time-varied Doppler frequency of the target without knowing its velocity and acceleration.The advantage of the proposed method is that it can increase the coherent integration time and improve detection performance under the condition of Doppler frequency ambiguity.Compared with the second-order RFT algorithm,the computational burden of the proposed method is greatly reduced under the premise that the two methods have similar estimation accuracy of range,velocity and acceleration.Numerical experiments demonstrate the validity of the proposed algorithm.TIAN Jing CUI Wei SHEN Qing WEI ZiXiang WU SiLiang 2013Science China(Information Sciences)2013,56,6:19
20宣威肺癌分子流行病学研究:煤种、基因型与肺癌风险显示文摘背景与目的已有的研究证明:宣威是我国农村肺癌死亡率最高的地区,肺癌危险与室内燃烧烟煤产生的多环芳烃(polycyclic aromatic hydrocarbons,PAHs)有关,肺癌发病具有明显的地域性差别和家族聚集性。本研究从分子流行病学角度探索宣威肺癌风险的危险因素及与发病机理有关的基因型和燃煤类型。方法运用两个基于人群的病例对照研究,开展问卷调查,同时采集口腔细胞和痰等生物样品,提取DNA。应用PCR法检测GST超家族、AKR超家族和OGG1等基因型。通过Logistic回归分析煤种、基因型与肺癌风险的关联。结果与燃用无烟煤或木柴的研究对象相比,家用来宾烟煤的肺癌风险比数比(odds ratio,OR)值高达24.8,其次为龙潭(OR=11.6)、宝山(OR=6.0)、龙场(OR=4.1)、羊场(OR=3.8)等;燃用同种烟煤的男女肺癌风险相似。对于GSTM1缺失、AKR1C3(Ex1-70C>G)、OGG1(Ex6-315C>G)基因型,肺癌风险明显增高,且具统计学意义[OR(95%CI)分别为2.3(1.3-4.2)、1.8(1.0-3.5)和1.9(1.1-3.3)]。与家用烟煤量小且具GSTM1阳性的研究对象相比,用量大且GSTM1缺失的研究对象肺癌风险更高,女性OR为4.9(1.3-18.2),男性OR为2.7(1.0-7.4)。但对于AKR1C3(Ex1-70C>G)和OGG1(Ex6-315C>G),仅观察到女性肺癌风险的明显增高,OR分别为12.9(2.2-107.8)和5.7(1.1-34.2)。结论宣威不同煤种的肺癌风险有很大差异,但暴露于相同煤种的男性与女性肺癌风险相似。GSTM1缺失基因型与肺癌风险增高有关联。AKR1C3与OGG1这2种基因型与肺癌风险有关联,且在烟煤使用量高的女性中肺癌风险更高。李继华 何俊 唐锐 Wei HU Qing LAN 何兴舟 李云 张云生 2015中国肺癌杂志2015,18,1:19
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