title: Genetic studies on familial leukemia.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D002675:Child, Preschool; D003241:Consanguinity; D005260:Female; D006801:Humans; D007564:Japan; D007938:Leukemia / Q000235:genetics*; D008297:Male; D008875:Middle Aged