2016. Agreement Between a Smart Ring and Manual Pulse Palpation for Heart Rate Measurement After the Six-Minute Walk Test in Male Hajj Pilgrims: A Cross-Sectional Agreement Study. Journal of Pharmaceutical and Sciences. 9, 4 (Oct. 2016), 3275–3283. DOI:https://doi.org/10.36490/journal-jps.com.v9i4.1921.