title: Polycythemia vera in Oklahoma City hospitals.
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009790:Occupations; D009825:Oklahoma; D011087:Polycythemia Vera / Q000175:diagnosis / Q000453:epidemiology* / Q000209:etiology / Q000628:therapy; D012737:Sex Factors