Somchai Chiempittayanuwat. (1997) Orthostatic hypotension and cardiovascular autonomic function in the elderly. Mahidol University,:ม.ป.ท.Somchai Chiempittayanuwat. 1997. Orthostatic hypotension and cardiovascular autonomic function in the elderly. ม.ป.ท.:Mahidol University,;Somchai Chiempittayanuwat. Orthostatic hypotension and cardiovascular autonomic function in the elderly. ม.ป.ท.:Mahidol University, 1997. Print.