There are multiple definitions:

1. ascending reticular/reticulocortical activating system(English)

   • Brain (dys)function
   • https://doi.org…neu.2012.07.010

2. atherosclerotic renal artery stenosis(English)

   • CVD, RAAS, RBF
   • Nephrology, Vascular disease

3. autosomal recessive Alport syndrome(English)

   • autosomal recessive disease that impairs the synthesis of type IV collagen. It clinically presents with progressive glomerular disease, ocular abnormalities, and sensorineural hearing loss
   • AS, XLAS, ADAS
   • Nephrology, Ophthalmology, Auditory system, Genetics
   • https://doi.org…55/2022/5243137