(for the very serious researcher, lots of Dr. gibberish)
Over 2000 articles including:
1. Quality of life in patients with chronic anal fissure after topical treatment with diltiazem.
2. Topical diltiazem vs. topical glyceril trinitrate in the treatment of chronic anal fissure: a prospective, randomized, double-blind trial.
3. Concurrent conditions in patients with chronic constipation: a population-based study.
All here: http://www.ncbi.nlm.nih.gov/pubmed