Johnson JA, Euler AR, Northcutt AR, McSorley DJ. Ranitidine 300mg at bedtime is effective for gastric ulcers: a 12-week, multicenter, randomized, double-blind, placebo-controlled comparison. Am J Gastroenterol. 1993;88(7):1071-5.
Marshall B, Ciociola AA, McSorley DJ, Webb DD. Computerized phone-in symptom recording system correlates with patient recorded symptom diary card for patients with non-ulcer dyspepsia. Am J Gastroenterol. 1993;91(9):1992.