Melatonin production in patients with duodenal ulcer.
UNLABELLED: OBJECTIVES. This work was designed to study melatonin (M) production levels in duodenal ulcer (DU) patients in the exacerbation and remission stages and in DU patients with a different course of DU in the exacerbation and remission stages.
METHODS: DU patients (15 men aged 20 to 45, mean age 34,2 +/- .....