The rationale of levothyroxine therapy in hypothyroidism.
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007037:Hypothyroidism / Q000188:drug therapy*; D007223:Infant; D007231:Infant, Newborn; D013974:Thyroxine / Q000627:therapeutic use*
D013974:Thyroxine