| MIDI | musical instrument digital interface |
|---|---|
| MNG/CRD/DA | multinodular goiter/cystic renal disease/digital anomalies [syndrome] |
| OFCTAD | occipito-facio-cervico-thoraco-abdomino-digital dysplasia |
| OFD | object-film distance; occipital frontal diameter; oro-facial-digital [syndrome] |
| PDA | patent ductus arteriosus; personal digital assistant; posterior descending artery; pulmonary disease... |