| HPO | high-presure oxygen; hydroperoxide; hydrophilic ointment; hypertrophic pulmonary osteoarthropathy |
|---|---|
| HPOA | hypertrophic pulmonary osteoarthropathy |
| IHO | idiopathic hypertrophic osteo-arthropathy |
| SHO | secondary hypertrophic osteoarthropathy; Senior House Officer |
| CHR | Chronic hypertrophic rhinitis |