Ing AJ et al: Pathogenesis of chronic persistent cough associated with gastroesophageal reflux. Am J Respir Crit Care Med 149:160, 1994

Irwin RS et al: Appropriate use of antitussives and protussives. A practical review. Drugs 46:80, 1993

Israili ZH, Hall WD: Cough and angioneurotic edema associated with angiotensin-converting enzyme inhibitor therapy. Ann Intern Med 117:234, 1992

Patrick H, Patrick F: Chronic cough. Med Clin North Am 79:361, 1995

Pratter MR et al: An algorithmic approach to chronic cough. Ann Intern Med 119:977, 1993

Wright SW et al: Pertussis infection in adults with persistent cough. JAMA 273:1044, 1995