after organic disease had been excluded as far as possible by clinical examination , including laboratory tests , analysis of faeces , and x-ray examination or endoscopy of the upper and lower gastrointestinal tract , 61 patients were given either 50 mg trimipramine at bedtime or identically looking coded placebo in a prospective study for 4 weeks .
C0017195
endoscopy
C0017189
gastrointestinal tract