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Published Online:https://doi.org/10.1176/ajp.109.1.35

A survey of the literature as well as of our case material indicates that peptic ulcer is common among psychotic patients, the incidence in hospital populations of mental and general hospitals being within comparable statistical range or perhaps of higher range in mental hospitals. These studies indicate further that the reputed low incidence is based on increased difficulties of diagnosis in the psychotic patient rather than on actual evidence.

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