| HDN | hemolytic disease of the newborn |
|---|---|
| HN | head and neck; head nurse; hemagglutinin neuraminidase; hematemesis neonatorum; hemorrhage of newbor... |
| MA-184 | newborn human foreskin cells |
| NB | nail bed; neuro-Behc;cet [syndrome]; neuroblastoma; neurometric battery; newborn; nitrous oxide-barb... |
| nb | newborn; note well [Lat. nota bene] |