American College of Sports Medicine roundtable on exercise guidelines for cancer survivors - Schmitz, K; Courneya, K; Matthews, C; Demark-Wahnefried, W; Galvao, D; Pinto, B; Irwin, M; Wolin, K; Segal, R; Lucia, A; Schneider, C; von, G; Schwartz, A (Med Sci Sport Exerc, 2010)