| PBF | peripheral blod flow; placental blood flow; pulmonary blood flow |
|---|---|
| PBL | peripheral blood leukocyte; peripheral blood lymphocyte; problem-based learning |
| PBV | predicted blood volume; pulmonary blood volume |
| PRBC | packed red blood cells; placental residual blood volume |
| RBF | regional blood flow; regional bone mass; renal blood flow |