| VCA | vancomycin, colistin, and anisomycin; viral capsid antigen |
|---|---|
| VCN | vancomycin, colistomethane, and nystatin; Vibrio chloreae neuraminidase |
| VREF | vancomycin-resistant Enterococcus faecium |
| AN | acanthosis nigricans; acne neonatorum; acoustic neuroma; adult, normal; ala nasi; amyl nitrate; aneu... |
| NBM | no bowel movement; normal bone marrow; normal bowel movement; nothing by mouth |