Physical activity and cancer: an umbrella review of the literature including 22 major anatomical sites and 770 000 cancer cases
Leandro Fórnias Machado de Rezende, Thiago Hérick de Sá, Georgios Markozannes, Juan Pablo Rey-López, I-Min Lee, Konstantinos K Tsilidis, John P A Ioannidis, José Eluf-Neto
Br J Sports Med Nov 2017, bjsports-2017-098391; DOI: 10.1136/bjsports-2017-098391