Colin-Jones, D G Reducing overnight secretion of acid to heal duodenal ulcers. Comparison of standard divided dose of ranitidine with a single dose administered at night. [electronic resource] - The American journal of medicine Nov 1984 - 116-22 p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial ISSN: 0002-9343 Subjects--Topical Terms: AdolescentAdultAgedAntacids--therapeutic useCircadian Rhythm--drug effectsClinical Trials as TopicDouble-Blind MethodDuodenal Ulcer--drug therapyFemaleGastric Acid--metabolismHumansHydrogen-Ion ConcentrationMaleMiddle AgedPlacebosRanitidine--administration & dosageSmokingTime Factors