作者: Allen J Wilcox , David Dunson , Donna Day Baird , None
DOI: 10.1136/BMJ.321.7271.1259
关键词: Obstetrics 、 Gynecology 、 Fertile Period 、 Ovulation Detection 、 Ovulation 、 Menstruation 、 Fertility awareness 、 Fertility 、 Medicine 、 Menstrual cycle 、 Pregnancy
摘要: Objectives: To provide specific estimates of the likely occurrence of the six fertile days (the “fertile window”) during the menstrual cycle. Design: Prospective cohort study. Participants: …