title: Survival in treated and untreated chronic lymphocytic leukemia 1942-1968.
mesh_terms: D000367:Age Factors; D000368:Aged; D005260:Female; D006801:Humans; D007615:Kansas; D007945:Leukemia, Lymphoid / Q000175:diagnosis / Q000401:mortality* / Q000628:therapy; D008297:Male; D008875:Middle Aged; D011379:Prognosis