1. School of Mathematics and Statistics & Key Laboratory of Analytical Mathematics and Applications (Ministry of Education) & Fujian Provincial Key Laboratory of Statistics and Artificial Intelligence, Fujian Normal University, Fuzhou, People's Republic of China
2. Department of Biostatistics and Bioinformatics, Emory University, Atlanta, GA, USA
3. Department of Psychiatry and Behavioral Neurosciences, Wayne State University, Detroit, MI, USA