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Khan, Z. A.; Akram, F.; Amin, S.; Orakzai, M. S.; Muhammad, A. M.; Naseer, Z. B.; Zohaib, A. .; Basheer, Y.; Qadeer, A. Design and Fabrication of Heart Rate and Oxygen Saturation Measurement Device Using LED-LED Configuration and to Study Correlation of PPG Signal Amplitude With Breathing Rate. PJOSR 2023, 3, 113-118.