| R' | in electrocardiography, the second positive deflection during the QRS complex |
|---|---|
| HP | Hypersensitivity Pneumonitis = Extrinsic Allergic Alveolitis |
| BREASTS | bronchopulmonary aspergillosis, radiotherapy, extrinsic allergic alveolitis, ankylosing spondylitis,... |
| EAA | electroacupuncture analgesia; Epilepsy Association of America; essential amino acid; excitatory amin... |
| EF | ectopic focus; edema factor; ejection fraction; elastic fibril; electric field; elongation factor; e... |