title: Leukaemia and B.C.G. A controlled trial.
mesh_terms: D000407:Alabama; D001500:BCG Vaccine; D005845:Georgia; D006689:Hodgkin Disease / Q000453:epidemiology / Q000517:prevention & control*; D006801:Humans; D007938:Leukemia / Q000453:epidemiology / Q000517:prevention & control*; D008228:Lymphoma, Non-Hodgkin / Q000453:epidemiology / Q000517:prevention & control*
chemical_list: D001500:BCG Vaccine