共 17 条
[1]
ALPERT J, 1976, ARCH SURG-CHICAGO, V111, P1190
[2]
ALPERT J, 1980, J THORAC CARDIOV SUR, V79, P729
[3]
ARMITAGE P, 1971, STATISTICAL METHODS, P427
[9]
HARVEY JC, 1981, CIRCULATION, V64, P114