More Groups
Fewer Groups
More People
Fewer People
Begg, C. B.; Riedel, E. R.; Bach, P. B.; Kattan, M. W.; Schrag, D.; Warren, J. L.; Scardino, P. T. New England Journal of Medicine (2002)
Bach, P. B.; Cramer, L. D.; Schrag, D.; Downey, R. J.; Gelfand, S. E.; Begg, C. B. New England Journal of Medicine (2001)
Bach, P. B.; Cramer, L. D.; Warren, J. L.; Begg, C. B. New England Journal of Medicine (1999)