[ENDOGENIC OLIGOPHRENIA. 2].
D001699:Biometry; D002648:Child; D004200:Diseases in Twins; D005826:Genetics, Medical; D006801:Humans; D008607:Intellectual Disability; D013223:Statistics as Topic; D014427:Twins
CHILD; DISEASES IN TWINS; GENETICS, HUMAN; MENTAL RETARDATION; STATISTICS
LES OLIGOPHR'ENIES ENDOG'ENES. 2.