More Groups
Fewer Groups
More People
Fewer People
Bach, P. B.; Cramer, L. D.; Schrag, D.; Downey, R. J.; Gelfand, S. E.; Begg, C. B. New England Journal of Medicine (2001)
Schrag, D.; Gelfand, S. E.; Bach, P. B.; Guillem, J.; Minsky, B. D.; Begg, C. B. Journal of Clinical Oncology (2001)