Pre- and post-diagnosis physical activity is associated with survival benefits of colorectal cancer patients: a systematic review and meta-analysis

// Wenrui Wu 1, 2 , Feifei Guo 1, 2 , Jianzhong Ye 1, 2 , Yating Li 1, 2 , Ding Shi 1, 2 , Daiqiong Fang 1, 2 , Jing Guo 1, 2 , Lanjuan Li 1, 2 1 State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China 2 Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China Correspondence to: Lanjuan Li, email:...