Letter: Anemia in cancer patients.
D000740:Anemia / Q000209:etiology*; D000818:Animals; D001943:Breast Neoplasms / Q000097:blood* / Q000150:complications; D004912:Erythrocytes / Q000473:pathology; D004920:Erythropoiesis; D005260:Female; D006801:Humans; D051379:Mice; D008875:Middle Aged