| NOII | nonocclusive intestinal ischemia |
|---|---|
| POLIP | polyneuropathy-ophthalmoplegia-leukoencephalopathy-intestinal pseudoobstruction [syndrome] |
| RBPI | intestinal retinol-binding protein |
| VIP | vasoactive intestinal peptide; vasoinhibitory peptide; venous impedance plethysmography; ventricular... |
| VIPoma | vasoactive intestinal polypeptide-secreting tumor |