Percalli, Luigi, Luigi Passalia, Renato Pricolo, and Matteo Riccò. 2019. “Pre-Operative Assessment of Internal Mucosal Rectal Prolapse in Internal Hemorrhoids: Technical Details and Results from a Single Institution”. Acta Biomedica Atenei Parmensis 90 (2): 308-15. https://doi.org/10.23750/abm.v90i2.6988.