| UPJ | ureteropelvic junction |
|---|---|
| DEJ, dej | dentino-enamel junction; dermo-epidermal junction |
| QRS-ST | the junction between the QRS complex and the ST segment in the electrocardiogram [junction] |
| LUP | left ureteropelvic |
| UP | parallax unsharpness; ulcerative proctitis; ultrahigh purity; unipolar; upright posture; ureteropelv... |