P. Dattola, et al. “Inguino-Crural Hernias: Preoperative Diagnosis and Post-Operative Follow-up by High-Resolution Ultrasonography. A Personal Experience”. Annali Italiani Di Chirurgia, vol. 73, no. 1, Jan. 2002, pp. 65-68, https://annaliitalianidichirurgia.it/index.php/aic/article/view/211.