Familial Longevity Is Not Associated with Major Differences in the Hypothalamic–Pituitary–Gonadal Axis in Healthy Middle-Aged Men

Evie van der Spoel, Ferdinand Roelfsema, Steffy W. Jansen, Abimbola A. Akintola, Bart E. Ballieux, Christa M. Cobbaert, Gerard J. Blauw, P. Eline Slagboom, Rudi G. J. Westendorp, Hanno Piji, Diana van Heemst