VALECCHI, Debora; BACCI, Duccio; GULISANO, Massimo; SGAMBATI, Eleonora; SIBILIO, Maurizio; LIPOMA, Mario; MACCHI, Claudio. Internal jugular vein valves: an assessment of prevalence, morphology and competence by Color Doppler Echography in 240 healthy subjects. Italian Journal of Anatomy and Embryology, [S. l.], v. 115, n. 3, p. 185–189, 2010. Disponível em: https://oajournals.fupress.net/index.php/ijae/article/view/1079. Acesso em: 16 dec. 2025.