共 7 条
[1]
HAYNES RB, 1990, ANN INTERN MED, V113, P722, DOI 10.7326/0003-4819-113-9-724
[3]
HELLER MB, 1990, ANN INTERN MED, P113
[5]
NAYLOR CD, 1991, J CLIN EPIDEMIOL, V44, P731
[6]
NEWELL FW, 1990, COMMUNICATION NOV
[7]
1987, ANN INTERN MED, V106, P598