HEMOPHILIA B IN A PAIR OF MONOZYGOTIC NEGRO TWINS.
D000886:Anthropometry; D044383:Black People; D001780:Blood Coagulation Tests; D001824:Body Constitution; D004200:Diseases in Twins; D005826:Genetics, Medical; D002836:Hemophilia B; D006801:Humans; D014427:Twins; D014430:Twins, Monozygotic
ANTHROPOMETRY; BLOOD COAGULATION TESTS; BODY CONSTITUTION; CHRISTMAS DISEASE; DISEASES IN TWINS; GENETICS, HUMAN; NEGROES