(Thank you to a generous friend for their reward and encouragement, and to readers 20180602234317808, 'I Love Reading Books,' and 'Original Waiting for the Moon Tickets' for their encouragement.)
The patient's sudden hematemesis startled Liu Banxia. In past incidences of pellagra, there had been no symptoms of upper gastrointestinal bleeding.
"Doctor, why... why is she vomiting blood?" the patient's husband asked in panic.
"Don't worry too much for now. It seems to be upper gastrointestinal bleeding. The bleeding isn't severe currently; let's perform an endoscopy to take a closer look," Liu Banxia said.
"I'll handle it personally," Wang Huan added.
"This is tricky. It seems that niacin deficiency isn't her primary ailment," Liu Banxia said, frowning.
"We've gone in a full circle and come back to the assumption that pellagra is a complication of her main illness. If we can't identify the main illness, I'm afraid giving her niacin long-term won't be a cure."
