| TRF | T-cell replacing factor; thyrotropin-releasing factor; tubular rejection fraction |
|---|---|
| TRH | tension-reducing hypothesis; thyrotropin-releasing hormone |
| TRHR | thyrotropin-releasing hormone receptor |
| TRH-ST | thyrotropin-releasing hormone stimulation test |
| HPL | human parotid lysozyme; human peripheral lymphocyte; human placental lactogen |