| MKSAP | medical knowledge self-assessment program |
|---|---|
| MTA | malignant teratoma, anaplastic; medical technical assistant; medical technology assessment; metatars... |
| OA | obstructive apnea; occipital artery; occipito-anterior; occiput anterior; octanoic acid; ocular albi... |
| O&A | observation and assessment |
| OHTA | Office of Health Technology Assessment |