More Groups
Fewer Groups
More People
Fewer People
Schmidt, C.; Gerdes, H.; Hawkins, W.; Zucker, E.; Zhou, Q.; Riedel, E.; Jaques, D.; Markowitz, A.; Coit, D.; Schattner, M. American Journal of Surgery (2009)
Power, D. G.; Schattner, M.; Gerdes, H.; Brenner, B.; Markowitz, A. J.; Capanu, M.; Coit, D. G.; Brennan, M.; Kelsen, D. P.; Shah, M. A. Journal of the American College of Surgeons (2009)