There are multiple definitions:

1. retinoic acid receptor(English)

   • RARA, ATRA, RXR, MTAL, PHD, RAAS, SIRT-1, TAL, UUO, VHL
   • Kidney and adrenals
   • https://doi.org…srev.00029.2022

2. rest-activity rhythm(English)

   • IV, MCTQ, RA
   • Circadian rhythm, Aging, Frailty, Variability / oscillation
   • https://doi.org…28.2019.1626416