Joseph, S., Sudhakar, A. and Mukkadan, J. 2026. Cardiac Autonomic Neuropathy: Comparative performance of Phase-Rectified Signal Averaging methods with Cardiac Autonomic Reflex Tests and Time Domain Heart rate variability. Nigerian Medical Journal. 67, 2 (Mar. 2026), 1326. DOI:https://doi.org/10.71480/nmj.v67i2.1326.