| MHI | malignant histiocytosis of intestine; Mental Health Index; Mental Health Inventory |
|---|---|
| PI | first meiotic prophase; isoelectric point; pacing impulse; package insert; pancreatic insufficiency;... |
| SI | International System of Units [Fr. le Systeme International d'Unites]; sacroiliac; saline infusion; ... |
| TSIA | total small intestine allotransplantation; triple sugar iron agar |