单位:[1]cambridge centre for health services research,department of public health and primary care,university of cambridge,cambridge cb2 0sr,uk[2]health behaviour research centre,university college london,london,uk[3]school of medicine,pharmacy and health,university of durham,durham,uk[4]华中科技大学;同济医学院附属同济医院肿瘤治疗中心华中科技大学同济医学院附属同济医院肿瘤科