title: [A problem of differential diagnosis: anemia of unknown origin].
authors.affiliation: Medizinische Universitätsklinik, Ulm, Deutschland. hermann.heimpel@uniklinik-ulm.de
authors.forename: Hermann
authors.initials: H
authors.lastname: Heimpel
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D000740:Anemia / Q000209:etiology*; D003937:Diagnosis, Differential; D004911:Erythrocyte Volume; D005260:Female; D006400:Hematocrit; D006452:Hemoglobinometry; D006801:Humans; D007958:Leukocyte Count; D008297:Male; D008875:Middle Aged; D010976:Platelet Count; D011247:Pregnancy; D012016:Reference Values; D012737:Sex Factors