title: [Birth rate drops at the end of the 19th century and the first half of the 20th century. Coitus interruptus as primary form of contraception].
authors.affiliation: p.e.treffers@hccnet.nl
authors.forename: Pieter E
authors.initials: PE
authors.lastname: Treffers
mesh_terms: D000328:Adult; D001723:Birth Rate / Q000639:trends*; D003076:Coitus Interruptus; D003267:Contraception / Q000266:history* / Q000379:methods; D005260:Female; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D009426:Netherlands; D011247:Pregnancy; D018873:Pregnancy Rate