Labels:text | screenshot | black | black and white | font OCR: sed on the Diagnosis of the carcinoid syndrome is e acetic finding of raised levels of 5-hydroxyind acid (5HIAA) in a twenty-four-hour uri of collection. This is produced by the actior rogenase monoamine oxidase and aldehyde dehy inety-five enzymes on 5HTand accounts for over per cent of the urinary excretion of 5HT
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