Fudan University Shanghai Cancer Center SURGEON S ROLE IN CANCER MANAGEMENT 2. 1 Prevention and Screening The most effective weapons against cancer are prevention and early detection ⑨复火拳上海医学院肿瘤学余Fudan University Shanghai Cancer Center 复旦大学上海医学院肿瘤学系 SURGEON'S ROLE IN CANCER MANAGEMENT 2.1Prevention and Screening • The most effective weapons against cancer are prevention and early detection