共 4 条
[1]
American Hospital Association, 1980, HOSP STAT
[2]
MCNERNEY WJ, 1962, HOSPITAL MED EC STUD, V2
[3]
*NAT CTR HLTH STAT, 1978, 126 VIT HLTH STAT 10
[4]
SHRYOCK HS, 1971, METHODS MATERIALS DE, V2, P290