Fatigue, weight gain, lethargy and amenorrhea in breast cancer patients on chemotherapy: is subclinical hypothyroidism the culprit? - Kumar,N.; Allen,K.A.; Riccardi,D.; Bercu,B.B.; Cantor,A.; Minton,S.; Balducci,L.; Jacobsen,P.B. (Breast Cancer Res Treat, 2004)