Nitroglycerin 0.4% ointment vs placebo in the treatment of pain resulting from chronic anal fissure: a randomized, double-blind, placebo-controlled study

Scott Berry(Queen's University), Ann Yellowlees(Roslin Cells (United Kingdom)), Gemma Clark, John E Pappas(Lexington VA Health Care System), Dennis Riff(Clinical Research Institute), Charles F. Barish(Wake Research), Gregory V Collins, Michael Safdi(University of Chicago), Raj Bhandari(Delta Air Lines (United States)), Julian Howell
BMC Gastroenterology
July 1, 2013
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