| FRV | full-length retroviral [sequence]; functional residual volume |
|---|---|
| IGS | image-guided surgery; inappropriate gonadotropin secretion; internal guide sequence |
| ISE | inhibited sexual excitement; International Society of Endocrinology; International Society of Endosc... |
| IVS | inappropriate vasopressin secretion; intervening sequence; interventricular septum; intervillous spa... |
| PKS | protein kinase sequence |