共 22 条
[1]
*AM HOSP ASS, 1992, HOSP CLOS 1980 1991
[2]
*AM HOSP ASS, 1994, HOSP STAT 1994 95
[4]
BOWEN W, 1994, CHARITABLE NONPROFIT, P94
[6]
Gentry WM, 2000, NBER CONF R, P285