More Groups
Fewer Groups
Basch, E.; Goldfarb, S. The Journal of Supportive Oncology (2009)
Menzies, H.; Chochinov, H. M.; Breitbart, W. The Journal of Supportive Oncology (2005)
Deng, G.; Cassileth, B. R.; Yeung, K. S. The Journal of Supportive Oncology (2004)