| H-H | head-to head |
|---|---|
| HB-EGF | Heparin binding epidermal growth factor-like growth factor |
| HB-EGF | Heparin-binding epidermal growth factor (EGF)-like growth factor |
| GH-IGF-I | growth hormone-insulin-like growth factor I |
| AAO-HNS | American Academy of Otolaryngology Head and Neck Surgery |