Changes In Photoplethysmography Respiratory Modulation (dc Component) During Pediatric Spinal Fusion Surgery. Research Authors Kim Tran, Mohamed Elgamal, Ahmad Ibrahim, Anna-Maria Eid, Antonio Gonzalez-Fiol, Aymen A Alian Research Date Sun, 10 Oct 2021 - 12:00 Research Department Department of Pediatrics Research Member Ahmed Ibrahim mohammed Ibrahim