| PERK | prospective evaluation of radial keratotomy [protocol] |
|---|---|
| PHAVER | pterygia-heart defects-autosomal recessive inheritance-vertebral defects-ear anomalies-radial defect... |
| Ra | radial; radium; radius |
| RAD | radial artery catheter; radiation absorbed dose; radical; radiography or radiographic; reactive airw... |
| rad | radiation absorbed dose; radial; radian; radical; radius; root [Lat. radix] |