A Comprehensive Review of Deepfake Detection Techniques Utilizing Remote Photoplethysmography. - Kavya Sree Kammari; Manju Khanna; Yasasree Lasya Annambhotla; Keerthi Devarajan Anuradha; Poosarla Naga Suryapadma Namrata; K. V. Nagaraja; T. V. Smitha; Tony Jan; Ganesh R. Naik (IEEE Access, 2025)