| OSA | obstructive sleep apnea; Office of Services to the Aging; Optical Society of America; ovarian sectio... |
|---|---|
| OTR | Ovarian Tumor Registry; Occupational Therapist, Registered |
| OVC | ovarian cancer |
| OWR | Osler-Weber-Rendu [syndrome]; ovarian wedge resection |
| PCOD | polycystic ovarian disease |