| OI | obturator internus; occasional insomnia; opportunistic infection; opsonic index; orgasmic impairment... |
|---|---|
| CD | cadaver donor; canine distemper; canine dose; carbohydrate dehydratase; carbon dioxide; cardiac dise... |
| BD | barbital-dependent; barbiturate dependence; base deficit; base of prism down; basophilic degeneratio... |
| DD | dangerous drug; data definition; day of delivery; degenerated disc; degenerative disease; delusional... |
| PAD | pain and distress; patient surface axis depth; percutaneous abscess drainage; percutaneous automated... |