title: The effect of prolonged drug usage on fetal development. An epidemiological approach.
mesh_terms: D000014:Abnormalities, Drug-Induced / Q000145:classification / Q000453:epidemiology*; D064420:Drug-Related Side Effects and Adverse Reactions; D004812:Epidemiologic Methods; D005260:Female; D005333:Fetus / Q000187:drug effects* / Q000502:physiology; D006801:Humans; D007231:Infant, Newborn; D011247:Pregnancy; D012042:Registries