| QRS-T | the angle between the QRS and T vectors in vectorcardiography [angle] |
|---|---|
| NMPCA | nonmetric principal component analysis |
| PCA | para-chloramphetamine; parietal cell antibody; passive cutaneous anaphylaxis; patient care assistant... |
| PCMO | Principal Clinical Medical Officer |
| PI | first meiotic prophase; isoelectric point; pacing impulse; package insert; pancreatic insufficiency;... |