More Groups
Fewer Groups
More People
Fewer People
Zelefsky, M. J.; Happersett, L.; Leibel, S. A.; Burman, C. M.; Schwartz, L.; Dicker, A. P.; Kutcher, G. J.; Fuks, Z. International Journal of Radiation Oncology, Biology, Physics (1997)
Dershaw, D. D.; Giess, C. S.; McCormick, B.; Borgen, P.; Liberman, L.; Abramson, A. F.; Morris, E. Cancer (1997)