【作者】(必须)Hargreave M, Mørch LS, Andersen KK, Winther JF, Schmiegelow K, Kjaer SK
【文章标题】(必须) Maternal use of hormonal contraception and risk of childhood leukaemia: a nationwide, population-based cohort study.
【期刊名,年份,卷(期),起止页】(期刊名必须,其他为快速获得应助请尽量填写)Lancet Oncol. 2018 Oct;19(10):1307-1314.
【全文链接】 (为快速获得应助请尽量填写)推荐给出PMID 或者 DOI号 doi: 10.1016/S1470-2045(18)30479-0.