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| 1 | Teenagers’Sexual Behavior in Sweden, Europe显示文摘Objective To investigate the development of sexuality from early to late adolescence,and to compare girls and boys of different agesMethods A cross sectional survey in all schools was performed covering all pupilsbetween 13 and 18 years of age that were in school when the survey was conducted. Avalidated instrument, Q90, created for use in teenagers was distributed in the class-rooms to 3 216 teenagers. Q90 covers 30 questions about body development andsexual behavior. Non-response was insignificant (n=19; 0.6%).Results Pubertal development was considered “early” or “late” by about 50% ofboth boys and girls. Eighty percent of the 13 to 15 years old boys and girls had had aromance and 30% had experience of sexual cuddling (petting), while significantlymore girls than boys had sexual intercourse (18% vs 13%; odds ratio 1.5, 95% CI1.1-1.9). The difference between girls and boys remained in those being 16-18 yearsold, where 63% of the girls and 53% of the boys (odds ratio 1.5, 95% CI 1.2-1.9)admitted having intercourse. Mean age at first intercourse was 14.9 and 15 years,respectively. At 16-18 years of age, 23% of the sexually active girls, as compared with25% of the boys estimated that they had had 6 or more sexual partners. About 30% ofthe adolescents, irrespective of age and gender, did not use contraceptives at theirfirst and latest intercourse. Eight percent of the older girls had been pregnant, andthey had an increased history of sexually transmitted infections, as compared withthe boys (6.2% vs 2.7%; odds ratio 2.4, 95% CI 1.2-5.0).Conclusion Exploring sexuality and experimentation is a normal behavior inadolescence. The results of this study, however, indicate that there are substantialgroups of teenagers who practice sexual risk-taking. In addition to general sexualeducation, programs should also be directed to define sexual risks and its consequences. | Lars I Holmberg Dan Hellberg | 2005 | Journal of Reproduction and Contraception2005，16，3： | 2 |
| 2 | Molecular imprinting: developments and applications in the analytical chemistry field 显示文摘 | Lars I Andersson | 2000 | Journal of Chromatography B2000，745，： | 1 |
| 3 | Sorafenib in radioactive iodine-refractory, locally advanced or metastatic differentiated thyroid cancer: a randomised, double-blind, phase 3 trial显示文摘 | Marcia S Brose Christopher M Nutting Barbara Jarzab Rossella Elisei Salvatore Siena Lars Bastholt Christelle de la Fouchardiere Furio Pacini Ralf Paschke Young Kee Shong Steven I Sherman Johannes W A Smit John Chung Christian Kappeler Carol Pe?a István Mo | 2014 | The Lancet2014，，： | 1 |
| 4 | Mycoplasma genitalium: prevalence and behavioural risk factors in the general population显示文摘 | Andersen B Sokolowshi I Lars Stergaard | 2007 | Sex Transm Infect2007，83，3： | 1 |
| 5 | Correlation between retinal morphological and functional findings and clinical severity in Parkinson’s disease显示文摘 | ?zgül Altinta? Pervin I?eri Berna ?zkan Yusuf ?a?lar | 2008 | Documenta Ophthalmologica2008，，2： | 1 |
| 6 | Applying the unscented Kalman filter for nonlinear state estimation显示文摘 | Rambabu K Bjarne F Lars I | 2008 | Journal of Process Control2008，18，7： | 1 |
| 7 | The RCORD1 study group, rivaroxaban versus enoxaparin for thrombopro- phylaxis after hip arthroplasty 显示文摘 | BENGT I ERIKSSON M D LARS C | 2008 | N Engl J Med2008，358，26： | 1 |
| 8 | Mycoplasma genitalium: prevalence and behavioral risk factors in the general population 显示文摘 | Andersen B Sokolowshi I Lars Stergaard | 2007 | Sex Transm Infect2007，83，3： | 1 |
| 9 | Development of new protocol sand analysis procedures for the assessment of LBP by surface EMG techniques显示文摘 | LARS O GIPHART I E BUUS J E | 1997 | J Rehab Res Dev1997，34，4： | 1 |
| 10 | The heat transfer during filling of a high-pressure die-casting shot sleeve显示文摘 | RAIMO H OTTO L LARS A HANS I L | 2005 | Materials Science and Engineering A2005，，： | 1 |
| 11 | Molecular Imprinting: developments and appilcations in the analytical chemistry field 显示文摘 | Lars I Andersson | 2000 | Journal o f Chromatography B2000，745，： | 1 |
| 12 | Manganese-catalysed autoxidation of dissolved sulfur dioxide in the atmospheric aqueous phase显示文摘 | Johan Berglund Lars I Elding | 1995 | Original Research Article Atmospheric Environment1995，，6： | 1 |
| 13 | Molecular imprinting science and technology:a sur vey of the the literature for the years up to and including 2003显示文摘 | Cameron Alexander Hakan S Andersson Lars I Andersson | 2006 | Journal of Molecular Recognition2006，19，： | 1 |
| 14 | Transient receptor potential channels in cardiovascular function and disease显示文摘 | Ryuji I Lars JJ Juan S | 2006 | Circ Res2006，99，2： | 1 |
| 15 | Ytterbium-doped fibers fabricated with atomic layer deposition method显示文摘 | Joan J Montiel i Ponsoda Lars Norin Changgeng Ye | 2012 | Optics Express2012，20，25： | 1 |
| 16 | Activation imbalances in lumbar spine muscles in the presence of chronic low back pain显示文摘 | Lars I Oddsson E Carlo J | 2003 | J Appl Physiol2003，94，： | 1 |
| 17 | Fiber coupled diode laser and beam-shaped high power stacks显示文摘 | STEFAN H LARS I | 1998 | SPIE1998，3267，： | 1 |
| 18 | Molecular imprinting:developments and applications in the analytical chemistry field显示文摘 | Lars I Andersson | 2000 | Journal of Chromatography B2000，745，： | 1 |
| 19 | Drug assay using antibody mimics made by molecular imprinting显示文摘 | George Vlatakis Lars I Andersson Rail Mtiller | 1993 | Nature1993，361，： | 1 |
| 20 | Molecular imprinting science and technology: A survey of the literature for the years up to and including 2003 显示文摘 | Cameron A Hhkan S A Lars I A etal | 2006 | J Mol Recognit2006，19，： | 1 |
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