TY - JOUR AU - Casanueva Freijo, Felipe PY - 2011 SN - 0002-8614 UR - http://hdl.handle.net/20.500.11940/5770 LA - eng TI - Frailty in relation to variations in hormone levels of the hypothalamic-pituitary-testicular axis in older men: Results from the european male aging study. DO - 10.1111/j.1532-5415.2011.03398.x T2 - JOURNAL OF THE AMERICAN GERIATRICS SOCIETY M2 - 814 VL - 59 ER -