School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China.|School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China.|School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China.|Beijing Engineering Research Center of Diagnosis and Treatment of Respiratory and Critical Care Medicine, Beijing Chaoyang Hospital, Beijing 100043, China.|Faculty of Health Sciences, University of Macau, Taipa, Macau.|Department of Statistical Science, Duke University, Durham, NC 27708, USA.|Faculty of Health Sciences, University of Macau, Taipa, Macau.