BOOK, J A Genetical investigations in a north-Swedish population; population structure, spastic oligophrenia, deaf mutism. [electronic resource] - Annals of human genetics Feb 1956 - 239-50 p. digital Publication Type: Journal Article ISSN: 0003-4800 Standard No.: 10.1111/j.1469-1809.1956.tb01369.x doi Subjects--Topical Terms: Deafness--geneticsHeredityHumansIntellectual Disability--geneticsMuscle SpasticityMutism