Randomized controlled trial of carvedilol versus variceal band ligation for the prevention of the first variceal bleed.
Tripathi D, Ferguson JW, Kochar N, Leithead JA, Therapondos G, McAvoy NC, Stanley AJ, Forrest EH, Hislop WS, Mills PR, et al. Hepatology. 2009 Sep; 50(3):825-33.