<Li> Gastroenterology (G02. 403.776. 409.405) (3) </Li> <Li> Gastroenterological diseases (C06. 405) (4) </Li> <P> 3 . National Library of Medicine Catalogue (NLM classification 2006): </P> <Ul> <Li> Digestive system (W1) (5) </Li> </Ul>

What does gi stand for in the medical field