title: The study of congenital anomalies by the epidemiologic method; with a consideration of retrolental fibroplasia as an acquired anomaly of the fetus.
authors.forename: T H
authors.initials: TH
authors.lastname: Ingalls
mesh_terms: D004812:Epidemiologic Methods; D005333:Fetus; D006801:Humans; D007231:Infant, Newborn; D012178:Retinopathy of Prematurity
keywords: FETUS; RETROLENTAL FIBROPLASIA