Megaloblastosis and low-dose trimethoprim-sulfamethoxazole.
D000368:Aged; D000748:Anemia, Macrocytic / Q000139:chemically induced*; D000749:Anemia, Megaloblastic / Q000139:chemically induced*; D005260:Female; D006801:Humans; D013420:Sulfamethoxazole / Q000009:adverse effects*; D014295:Trimethoprim / Q000009:adverse effects*
D014295:Trimethoprim; D013420:Sulfamethoxazole