Reply to correspondence on randomization in surgical studies.
Grunkemeier
G L
GL
Starr
A
A
D015982:Bias; D002986:Clinical Trials as Topic / Q000706:statistics & numerical data; D006350:Heart Valve Prosthesis; D006801:Humans; D015588:Observer Variation; D011474:Prosthesis Design; D011475:Prosthesis Failure; D016032:Randomized Controlled Trials as Topic / Q000706:statistics & numerical data