Studies on the anemia in premature infants.
D000751:Anemia, Neonatal / Q000097:blood*; D004912:Erythrocytes / Q000378:metabolism; D006454:Hemoglobins / Q000378:metabolism; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007235:Infant, Premature, Diseases / Q000097:blood*; D007501:Iron / Q000097:blood
D006454:Hemoglobins; D007501:Iron