| UGIS | Upper Gastro-Intestinal Series |
|---|---|
| VIP | Vasoactive Intestinal (Poly)Peptide |
| AII | acute intestinal infection; second meiotic anaphase |
| CIA | chemiluminescent immunoassay; chymotrypsin inhibitor activity; colony-inhibiting activity; congenita... |
| CIIP | chronic idiopathic intestinal pseudo-obstruction |