title: Long-term ovulation control with oral synthetic progestin.
authors.forename: H S
authors.initials: HS
authors.lastname: STREET
mesh_terms: D004967:Estrogens / Q000628:therapy*; D005260:Female; D006801:Humans; D010060:Ovulation; D045167:Progesterone Congeners
chemical_list: D004967:Estrogens; D045167:Progesterone Congeners
keywords: ESTROGENS/therapy; OVULATION