共 4 条
[1]
DERBYSHIRE RC, 1969, MEDICAL LICENSURE DI
[2]
MCKEOWN RW, 1961, FEDERATION B, V48, P132
[3]
REGAN JF, 1966, FEDERATION B, V53, P318
[4]
1969, JAMA-J AM MED ASSOC, V210, P1092