There are multiple definitions:

1. thyrotropin releasing hormone(English)

   • Abbreviation may be used in Am. Soc. Physiol. journals without definition.
   • DEHAL1, DIT, DUOX, H2O2, ICCIDD, MIT, NIS, PDS, T3, T4, TPO, TSH
   • Thyroid and parathyroid, Physiology, Hormone
   • https://doi.org…687-9856-2014-8

2. treatment-resistant hypertension(English)

   • BP, HFpEF, HFmrEF, HTN, aTRH
   • Hypertension
   • https://doi.org…NAHA.123.065254