TY - GEN AU - Abernethy,D R TI - Research challenges, new drug development, preclinical and clinical trials in the ageing population SN - 0114-5916 PY - 1990///0516 KW - Aged KW - Aging KW - physiology KW - Clinical Trials as Topic KW - trends KW - Drug Design KW - Humans KW - Research N1 - Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S.; Review UR - https://doi.org/10.2165/00002018-199000051-00011 ER -