Published April 3, 2021 Updated August 31, 2026 Morten Frisch is the lead author of a 2013 letter by mostly European doctors criticizing the AAP task force on circumcision. [1] Two years after the letter was published, Frisch led a study based on his hypothesis that infant circumcision leads to a greater risk of boys developing autism spectrum disorder (ASP). Unsurprisingly Frisch concluded that the study of more than 340,000 boys in Denmark confirmed his expectation. [2] Ant