More Groups
Fewer Groups
More People
Fewer People
Amar, D.; Rusch, V. W.; Roistacher, N.; Bains, M. S.; Ginsburg, I.; Zhang, H. Anesthesia and Analgesia (2000)
Amar, D.; Rusch, V. W.; Bains, M. S.; Ginsburg, I.; Leung, D. H. Y.; Zhang, H.; Roistacher, N.; Downey, R. J.; Ginsberg, R. J. Anesthesia and Analgesia (1999)