| ODA | right occipitoanterior [fetal position] [Lat. occipito-dextra anterior] |
|---|---|
| ODP | offspring of diabetic parents; right occipitoposterior [fetal position] [Lat. occipito-dextra poster... |
| ODT | oculodynamic tract; right occipitotransverse [fetal position] [Lat. occipito-dextra transversa] |
| OLA | left occipitoanterior [fetal position] [Lat. occipito-laeva anterior]; oligonucleotide ligation assa... |
| OLP | left occipitoposterior [fetal position] [Lat. occipito-laeva posterior] |