The relationship between red hair, MC1R gene mutation, pain and anesthesia: An integrative literature review. Research, Society and Development, [S. l.], v. 10, n. 8, p. e33710817398, 2021. DOI: 10.33448/rsd-v10i8.17398. Disponível em: https://rsdjournal.org/rsd/article/view/17398. Acesso em: 5 dec. 2025.