1. Allen CJ, Newhouse MT (1984) Gastroesophageal reflux and chronic respiratory disease. Am Rev Respir Dis 129:645–647
2. Aviado DM, Koelle GB, Salem H (1970) Antitussive agents. In International Encyclopedia of Pharmaceuticals, Therapeutic Section 27. Pergamon Press, Oxford
3. Banner AS, Green J, O’Connor M (1984) Relation of respiratory water loss to coughing after exercise. N Engl J Med 311:883–886
4. Benson WM, Stefko PL, Randall LG (1953) Comparative pharmacology of levorphan, race-morphan, and dextromethorphan and related methyl ethers. J Pharmacol Exp Ther 109:189–200
5. Berquist WE, Rachelefsky GS, Kadden M, Siegel SC, Katz RM, Mickey MR, Ament ME (1981) Effect of theophylline on gastroesophageal reflux in normal adults. J Allergy Clin Immunol 67:407–411