A real-time ppg peak detection method for accurate determination of heart rate during sinus rhythm and cardiac arrhythmia Han Dong Bashar Syed Khairul Lázaro Jesús Universidad de Zaragoza Mohagheghian Fahimeh Peitzsch Andrew Nishita Nishat Ding Eric Dickson Emily L. DiMezza Danielle Scott Jessica Whitcomb Cody Fitzgibbons Timothy P. McManus David D. Chon Ki H. 2022 research-article