Randomized trials in coronary artery bypass surgery.
Frye
R L
RL
Fisher
L
L
Schaff
H V
HV
Gersh
B J
BJ
Vlietstra
R E
RE
Mock
M B
MB
D002986:Clinical Trials as Topic / Q000379:methods*; D001026:Coronary Artery Bypass; D006801:Humans; D011897:Random Allocation; D012107:Research Design