The Man With Two Faces

https://en.wikipedia.org/wiki/Edward_Mordake

https://www.snopes.com/fact-check/edward-mordrake/

http://www.news.com.au/lifestyle/health/health-problems/miracle-boy-born-with-extremely-rare-condition-that-gave-him-two-faces-defies-odds-to-celebrate-13th-birthday/news-story/952702723f6eaf564da2feed891fc7ae

http://www.doctorsreview.com/history/men-two-faces/
https://en.wikipedia.org/wiki/Pasqual_Piñón

https://en.wikipedia.org/wiki/Craniopagus_parasiticus

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3809672/

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5134060/

https://www.reuters.com/article/us-india-baby/india-two-faced-babys-family-refuses-special-care-idUSDEL10668320080410

https://www.verywellfamily.com/parasitic-twin-profile-manar-maged-2446993