[A contribution to symptomatic erythroblastosis].
D000740:Anemia; D004900:Erythroblasts; D006801:Humans; D012004:Rectal Neoplasms; D012007:Rectum; D017086:beta-Thalassemia / Q000209:etiology*
ANEMIA, ERYTHROBLASTIC/etiology; RECTUM/neoplasms