Tomás Vila, M [Epidemiology of mental deficiency. The study of Safor (I): prevalence and etiology]. [electronic resource] - Anales espanoles de pediatria May 1991 - 365-71 p. digital Publication Type: English Abstract; Journal Article; Review ISSN: 0302-4342 Subjects--Topical Terms: ChildChild, PreschoolCross-Sectional StudiesFemaleHumansInfantInfant, NewbornInfant, PrematureIntellectual Disability--epidemiologyMaleSpain--epidemiology