Bleeding patterns in users of a 91-day extended regimen oral contraceptive with low-dose estrogen in place of placebo compared to a conventional 28-day regimenRobert Feldman,Kathleen Z. Reape,Howard HaitContraception（2007）引用 0|浏览4暂无评分AI 理解论文溯源树样例生成溯源树，研究论文发展脉络Chat Paper正在生成论文摘要
