More Groups
Fewer Groups
More People
Fewer People
La Porta, M.; Hagood, H.; Patt, J.; Hodorowski, J. K.; Treiman, K. Journal of Cancer Education (2007)
Ostroff, J.; Garland, J.; Moadel, A.; Fleshner, N.; Hay, J.; Cramer, L.; Zauber, A.; Trambert, R.; O'Sullivan, M.; Russo, P. Journal of Cancer Education (2000)