title: A long-term study of regression of precancerous lesions under oral progestin medication: observations on the prevalence of carcinoma in situ and dysplasia in private versus planned parenthood groups.
authors.forename: J E
authors.initials: JE
authors.lastname: Ayre
authors.forename: F C
authors.initials: FC
authors.lastname: Reyner
authors.forename: J M
authors.initials: JM
authors.lastname: Leguerrier
authors.forename: R
authors.initials: R
authors.lastname: Schwartz
mesh_terms: D000569:Americas; D003267:Contraception; D003270:Contraceptive Agents; D003271:Contraceptive Agents, Female; D019049:Developed Countries; D003906:Developing Countries; D004194:Disease; D016889:Endometrial Neoplasms; D005069:Evaluation Studies as Topic; D005193:Family Planning Services; D009369:Neoplasms; D009518:New York; D009656:North America; D012106:Research; D014481:United States; D002583:Uterine Cervical Neoplasms
chemical_list: D003270:Contraceptive Agents; D003271:Contraceptive Agents, Female
keywords: Americas; Cancer; Cervical Cancer; Clinical Research; Contraception; Contraceptive Agents, Female; Contraceptive Agents, Progestin--side effects; Contraceptive Agents--side effects; Developed Countries; Developing Countries; Diseases; Endometrial Cancer; Evaluation; Family Planning; Neoplasms; New York; North America; Northern America; Research Methodology; United States