| URI | uniform resource identifier; upper respiratory illness; upper respiratory infection |
|---|---|
| RCR | relative consumption rate; replication-competent retrovirus; respiratory control ratio |
| BCM | B-cell maturation; birth control medication; blood-clotting mechanism effects; body cell mass; body ... |
| CDC | calculated date of confinement; cancer diagnosis center; capillary diffusion capacity; cell division... |
| RDI | Respiratory Disturbance Index |