| CLAS | congenital localized absence of skin |
|---|---|
| LOA | leave of absence; Leber optic atrophy; left occipitoanterior [fetal position] |
| PIVKA | protein induced by vitamin K absence or antagonism |
| SASPP | syndrome of absence of septum pellucidum with preencephaly |
| TTA | tetanus toxoid antibody; timed therapeutic absence; total toe arthroplasty; transtracheal aspiration... |