title: Involuntary childlessness with increasing age.
authors.forename: J
authors.initials: J
authors.lastname: Bongaarts
mesh_terms: D000367:Age Factors; D003710:Demography; D007246:Infertility; D007315:Insemination, Artificial; D011153:Population; D011154:Population Characteristics; D012098:Reproduction; D012099:Reproductive Techniques
keywords: Age Factors; Artificial Insemination; Demographic Factors; Infertility--women; Population; Population Characteristics; Reproduction; Reproductive Technologies