Hojaij, Flávio Carneiro, Rudolph Octaviano Kogima, Raquel Ajub Moyses, Flávia Emi Akamatsu, and Alfredo Luiz Jacomo. “Morphometry and Frequency of the Pyramidalis Muscle in Adult Humans: A Pyramidalis Muscle’s Anatomical Analysis”. Clinics 750 (July 27, 2020): e1623. Accessed July 31, 2021. https://www.revistas.usp.br/clinics/article/view/172928.