Comment on

• Randomized trial of ligation versus combined ligation and sclerotherapy for bleeding esophageal varices.

  Al Traif I, Fachartz FS, Al Jumah A, Al Johani M, al-Omair A, al-Bakr F, al-Knawy B, el-Hafi A, Khan MH. Al Traif I, et al. Gastrointest Endosc. 1999 Jul;50(1):1-6. doi: 10.1016/s0016-5107(99)70335-4. Gastrointest Endosc. 1999. PMID: 10385713 Clinical Trial.
• Sclerotherapy plus ligation versus ligation for the treatment of esophageal varices: a prospective randomized study.

  Umehara M, Onda M, Tajiri T, Toba M, Yoshida H, Yamashita K. Umehara M, et al. Gastrointest Endosc. 1999 Jul;50(1):7-12. doi: 10.1016/s0016-5107(99)70336-6. Gastrointest Endosc. 1999. PMID: 10385714 Clinical Trial.