title: The need for ovulation detection before prescribing oral contraception.
authors.forename: M
authors.initials: M
authors.lastname: Blum
authors.forename: J
authors.initials: J
authors.lastname: Pery
mesh_terms: D000293:Adolescent; D000367:Age Factors; D001208:Asia; D001211:Asia, Western; D001695:Biology; D003267:Contraception; D003270:Contraceptive Agents; D003271:Contraceptive Agents, Female; D003276:Contraceptives, Oral; D003710:Demography; D019049:Developed Countries; D003906:Developing Countries; D005193:Family Planning Services; D005298:Fertility; D007557:Israel; D008597:Menstrual Cycle; D008598:Menstruation; D010060:Ovulation; D011153:Population; D011154:Population Characteristics; D011157:Population Dynamics; D011253:Pregnancy in Adolescence; D012098:Reproduction; D012106:Research; D012725:Sexual Behavior
chemical_list: D003270:Contraceptive Agents; D003271:Contraceptive Agents, Female; D003276:Contraceptives, Oral
keywords: Adolescent Pregnancy; Adolescents; Adolescents, Female; Age Factors; Asia; Biology; Clinical Research; Contraception; Contraceptive Agents; Contraceptive Agents, Female; Contraceptive Methods--side effects; Demographic Factors; Developed Countries; Developing Countries; Family Planning; Fertility; Israel; Mediterranean Countries; Menstrual Cycle; Menstruation; Oral Contraceptives--side effects; Ovulation; Population; Population Characteristics; Population Dynamics; Reproduction; Reproductive Behavior; Research Methodology; Western Asia; Youth