【作者(必填)】Collaborative Ovarian Cancer Group

【文题(必填)】Characteristics  relating to ovarian cancer risk: collaborative analysis of 12 US case-control  studies. I. Methods.

【年份(必填)】1992

【全文链接或数据库名称(选填)】http://aje.oxfordjournals.org/content/136/10/1175.full.pdf+html