Effects of age and gender on the cardiovascular responses to isoproterenol. - Turner MJ; Mier CM; Spina RJ; Schechtman KB; Ehsani AA; Turner, M J; Mier, C M; Spina, R J; Schechtman, K B; Ehsani, A A (Journals of Gerontology Series A: Biological Sciences & Medical Sciences, 1999)