The critical role of context in the diagnostic process.
D000368:Aged; D005260:Female; D005756:Gastritis / Q000175:diagnosis; D006471:Gastrointestinal Hemorrhage / Q000209:etiology; D006801:Humans; D007416:Intestinal Perforation / Q000150:complications / Q000175:diagnosis*; D013276:Stomach Ulcer / Q000150:complications / Q000175:diagnosis*