共 17 条
[2]
HORMONAL RESPONSES TO GRADED SURGICAL STRESS
[J].
ARCHIVES OF INTERNAL MEDICINE,
1987, 147 (07)
:1273-1278
[5]
POWER AND SAMPLE-SIZE CALCULATIONS - A REVIEW AND COMPUTER-PROGRAM
[J].
CONTROLLED CLINICAL TRIALS,
1990, 11 (02)
:116-128
[10]
LUNISS PJ, 1994, BRIT J SURG, V81, P1382