Hyuna Sung, Adalberto M. Filho, Mathieu Laversanne, Jacques Ferlay, Rebecca L. Siegel, Isabelle Soerjomataram, Ahmedin Jemal, Freddie Bray (2021). Global Cancer Statistics 2020: GLOBOCAN Estimates of Incidence and Mortality Worldwide for 36 Cancers in 185 Countries. CA A Cancer Journal for Clinicians. https://doi.org/10.3322/caac.21660