Boyer Cherrie B, Sebro Nadew S, Wibbelsman Charles, Shafer Mary-Ann
Department of Pediatrics, Division of Adolescent Medicine, University of California, San Francisco, San Francisco, California 94143-0503, USA.
J Adolesc Health. 2006 Aug;39(2):287-90. doi: 10.1016/j.jadohealth.2005.12.010.
To determine association between acquisition of sexually transmitted infections (STIs) over a nine-month period among sexually experienced adolescents attending an urban, general HMO teen clinic and African American race, use of marijuana more than once or twice a week, and having had relationships with a sexual partner who is more than four years older.
为了确定在一家城市综合健康维护组织（HMO）青少年诊所就诊的有性经验的青少年中，在九个月期间性传播感染（STIs）的获得与非裔美国人种族、每周使用大麻超过一两次以及与年龄相差四岁以上的性伴侣有关系之间的关联。
