BreathSens: A Continuous On-Bed Respiratory Monitoring System With Torso Localization Using an Unobtrusive Pressure Sensing Array. - Jason J. Liu; Ming-Chun Huang; Wenyao Xu; Xiaoyi Zhang 006; Luke Stevens; Nabil Alshurafa; Majid Sarrafzadeh (IEEE J. Biomed. Health Informatics, 2015)