title: Fertility awareness: jet-age rhythm method?
authors.affiliation: Stanford University, CA 94305.
authors.forename: C
authors.initials: C
authors.lastname: Djerassi
mesh_terms: D015415:Biomarkers / Q000032:analysis; D004958:Estradiol / Q000032:analysis; D005260:Female; D006801:Humans; D008597:Menstrual Cycle / Q000502:physiology; D012252:Natural Family Planning Methods; D010061:Ovulation Detection / Q000379:methods*; D011374:Progesterone / Q000032:analysis; D011934:Reagent Strips
chemical_list: D015415:Biomarkers; D011934:Reagent Strips; D011374:Progesterone; D004958:Estradiol