1. I. A. for Research on Cancer: World Fact Sheet (2020). https://gco.iarc.fr/today/data/factsheets/populations/900-world-fact-sheets.pdf/. Accessed 26 June 2022
2. I. H. Organization: Cancer (2022). https://www.who.int/news-room/factsheets/detail/cancer/. Accessed 26 June 2022
3. Seyfried, T.N., Huysentruyt, L.C.: On the origin of cancer metastasis. Crit. Rev.$$^{TM}$$ Oncog. 18(1–2) (2013)
4. Verywellhealth: What Is Metastasis? (2022). https://www.verywellhealth.com/metastatic-cancer-2249128/. Accessed 27 June 2022
5. Sánchez-Peralta, L.F., Bote-Curiel, L., Picón, A., Sánchez-Margallo, F.M., Pagador, J.B.: Deep learning to find colorectal polyps in colonoscopy: a systematic literature review. Artif. Intell. Med. 108, 101923 (2020)