| THR | targeted heart rate; threonine; thyroid hormone receptor; total hip replacement; transhepatic resist... |
|---|---|
| TPRI | total peripheral resistance index |
| TR | recovery time; rectal temperature; repetition time; residual tuberculin; terminal repeat; tetrazoliu... |
| TRR | total respiratory resistance |
| TSR | theophylline sustained release; thyroid to serum ratio; total systemic resistance |