1. Felice G, Privitera A, Ellul E, Klaumann M. Doppler-guided hemorrhoidal artery ligation: an alternative to hemorrhoidectomy. Dis Colon Rectum. 2005. 48:2090–2093.
2. Scheyer M, Antonietti E, Rollinger G, Mall H, Arnold S. Doppler-guided hemorrhoidal artery ligation. Am J Surg. 2006. 191:89–93.
3. Greenberg R, Karin E, Avital S, Skornick Y, Werbin N. First 100 cases with Doppler-guided hemorrhoidal artery ligation. Dis Colon Rectum. 2006. 49:485–489.
4. Faucheron JL, Gangner Y. Doppler-guided hemorrhoidal artery ligation for the treatment of symptomatic hemorrhoids: early and three-year follow-up results in 100 consecutive patients. Dis Colon Rectum. 2008. 51:945–949.
5. Longo A. Treatment of hemorrhoidal disease by reduction of mucosa and hemorrhoidalprolapse with a circular suturing device: a new procedure. 1998. In : Proceedings of 6th World Congress of Endoscopic Surgery; Jun 3~6; Rome, Italy: 777–784.
6. Morinaga K, Hasuda K, Ikeda T. A novel therapy for internal hemorrhoids: ligation of the hemorrhoidal artery with a newly devised instrument (Moricorn) in conjunction with a Doppler flowmeter. Am J Gastroenterol. 1995. 90:610–613.
7. Wallis de Vries BM, van der Beek ES, de Wijkerslooth LR, van der Zwet WC, van der Hoeven JA, Eeftinck Schattenkerk M, et al. Treatment of grade 2 and 3 hemorrhoids with Doppler-guided hemorrhoidal artery ligation. Dig Surg. 2007. 24:436–440.
8. Bursics A, Morvay K, Kupcsulik P, Flautner L. Comparison of early and 1-year follow-up results of conventional hemorrhoidectomy and hemorrhoid artery ligation: a randomized study. Int J Colorectal Dis. 2004. 19:176–180.
9. Hussein AM. Ligation-anopexy for treatment of advanced hemorrhoidal disease. Dis Colon Rectum. 2001. 44:1887–1890.
10. Gupta PJ. Hemorrhoidal ablation and fixation: an alternative procedure for prolapsing hemorrhoids. Digestion. 2005. 72:181–188.
11. Gupta PJ. Radioablation and suture fixation of advance grades of hemorrhoids. An effective alternative to staplers and Doppler guided ligation of hemorrhoids. Rev Esp Enferm Dig. 2006. 98:740–746.
12. Aigner F, Bodner G, Conrad F, Mbaka G, Kreczy A, Fritsch H. The superior rectal artery and its branching pattern with regard to its clinical influence on ligation techniques for internal hemorrhoids. Am J Surg. 2004. 187:102–108.
13. Walega P, Scheyer M, Kenig J, Herman RM, Arnold S, Nowak M, et al. Two-center experience in the treatment of hemorrhoidal disease using Doppler-guided hemorrhoidal artery ligation: functional results after 1-year follow-up. Surg Endosc. 2008. 22:2379–2383.
14. Arnold S, Antonietti E, Rollinger G, Scheyer M. Doppler ultrasound assisted hemorrhoid artery ligation. A new therapy in symptomatic hemorrhoids. Chirurg. 2002. 73:269–273.
15. Huang WS, Chin CC, Yeh CH, Lin PY, Wang JY. Randomized comparison between stapled hemorrhoidopexy and Ferguson hemorrhoidectomy for grade III hemorrhoids in Taiwan: a prospective study. Int J Colorectal Dis. 2007. 22:955–961.
16. Bikhchandani J, Agarwal PN, Kant R, Malik VK. Randomized controlled trial to compare the early and mid-term results of stapled versus open hemorrhoidectomy. Am J Surg. 2005. 189:56–60.
17. Wang JY, Lu CY, Tsai HL, Chen FM, Huang CJ, Huang YS, et al. Randomized controlled trial of LigaSure with submucosal dissection versus Ferguson hemorrhoidectomy for prolapsed hemorrhoids. World J Surg. 2006. 30:462–466.
18. Gravie JF, Lehur PA, Huten N, Papillon M, Fantoli M, Descottes B, et al. Stapled hemorrhoidopexy versus milliganmorgan hemorrhoidectomy: a prospective, randomized, multicenter trial with 2-year postoperative follow up. Ann Surg. 2005. 242:29–35.