| ECN | equipment control number |
|---|---|
| FN | false negative; fibronectin; fluoride number |
| Ha | absolution hypermetropia; hafnium; hamster; Hartmann number |
| IN | icterus neonatorum; impetigo neonatorum; incidence; incompatibility number; infundibular nucleus; in... |
| ISSN | International Standard Serial Number |