title: Lymphoblastic leukaemia in Siamese twins: evidence for identity.
mesh_terms: D004273:DNA, Neoplasm / Q000032:analysis; D004200:Diseases in Twins; D006801:Humans; D007223:Infant; D007945:Leukemia, Lymphoid / Q000235:genetics*; D008297:Male; D014428:Twins, Conjoined
chemical_list: D004273:DNA, Neoplasm