School of Software Engineering, Tongji University, Shanghai, China.|School of Software Engineering, Tongji University, Shanghai, China.|Department of Biostatistics and Bioinformatics, Emory University, Atlanta, GA, USA.|School of Software Engineering, Tongji University, Shanghai, China.|Department of Pharmaceutical Sciences, School of Pharmacy, Philadelphia College of Osteopathic Medicine, Suwanee, GA, USA.|School of Software Engineering, Tongji University, Shanghai, China.|Department of Biostatistics and Bioinformatics, Emory University, Atlanta, GA, USA.