| RD | radial deviation; radiology department; rate difference; Raynaud disease; reaction of degeneration; ... |
|---|---|
| QRS | in electrocardiography, the complex consisting of Q, R, and S waves, corresponding to depolarization... |
| QRS-T | the angle between the QRS and T vectors in vectorcardiography [angle] |
| CHD | Chediak-Higashi disease; childhood disease; chronic hemodialysis; congenital or congestive heart dis... |
| CRD | carbohydrate-recognition domain; chronic renal disease; chronic respiratory disease; child restraint... |