Ellison H S, Scheuer S A, Eichner E R
South Med J. 1980 Oct;73(10):1393-6. doi: 10.1097/00007611-198010000-00032.
A patient with Klinefelter's syndrome and breast carcinoma with multiple metastases, positive for both estrogen and progesterone receptors, showed documented regression of a lung and bone lesion after chemotherapy and a trial of tamoxifen therapy.