1)  REBOA G, M. GIPPONI, LIGORIO M, MARINO P. LANTIERI F: The impact of stapled transanal rectal resection (STARR) on anorectal function in patients with obstructed defecation syndrome. Dis Colon Rectum 2009; 52: 1-7. IP = 2.87

2)  REBOA G, M. GIPPONI, TESTA T, LIGORIO M: Controlled digital stretching nella prevenzione del dolore post-evacuativo in pazienti sottoposti a muco-prolassectomia sec. Longo: studio pilota. Osp. Italia Chir 2009; 15: 189-94.

3)  M. GIPPONI, REBOA G, TESTA T, et al: “Tension Free” primary closure with autologous platelet gel versus VIVOSTA^TM for the definitive treatment of chronic sacrococcygeal pilonidal disease. Randomized clinical trial. In Vivo 2010; 24: 583-90. IP = 1.9

4)  REBOA G, M. GIPPONI, TESTA T, LANTIERI F: Technological improvements in the treatment of haemorrhoids and obstructed defecation syndrome. In Vivo 2011; 25: 129-36. IP = 1.9