Psoriasis and hydroxyurea.
D004906:Erythrocyte Count; D005492:Folic Acid / Q000097:blood; D005494:Folic Acid Deficiency; D006454:Hemoglobins; D006801:Humans; D006918:Hydroxyurea / Q000627:therapeutic use*; D011565:Psoriasis / Q000188:drug therapy*
D006454:Hemoglobins; D005492:Folic Acid; D006918:Hydroxyurea