| MUD | minimum urticarial dose |
|---|---|
| CBR | carbonyl reductase; chemical, biological, and radiological [warfare]; chemically-bound residue; chro... |
| FOB | fecal occult blood; feet out of bed; fiberoptic bronchoscopy; foot of bed; functional observational ... |
| ABR | Absolute Bed Rest |
| ABO | abortion; absent bed occupancy; American Board of Orthodontists; blood group system consisting of gr... |