共 39 条
[1]
[Anonymous], 1991, Arch Intern Med, V151, P1413
[2]
[Anonymous], 1979, JAMA
[3]
[Anonymous], 1982, JAMA-J AM MED ASSOC, V247, P633
[4]
BJORNSONBENSON WM, 1993, CONTROL CLIN TRIALS, V14, pS52
[6]
BONE LR, 1994, HDB BLACK AM HLTH, P46
[8]
Cohen J., 1988, STAT POWER ANAL BEHA, DOI 10.1016/C2013-0-10517-X
[9]
DURKIN DA, 1993, CONTROL CLIN TRIALS, V14, pS20
[10]
GIFFORD RW, 1993, ARCH INTERN MED, V153, P154