| HF | Hageman factor; haplotype frequency; hard filled [capsule]; hay fever; head of fetus; head forward; ... |
|---|---|
| IUM | internal urethral meatus; intrauterine [fetus] malnourished; intrauterine membrane |
| LFD | lactose-free diet; large for date [fetus]; late fetal death; lateral facial dysplasia; least fatal d... |
| OB-US | obstetrical ultrasound [examination of the fetus] |