1. BGI-Shenzhen, Beishan Industrial Zone 11th building, Yantian District, Shenzhen, Guangdong 518083, China
2. Clinical laboratory of BGI Health, BGI-Shenzhen, Shenzhen 518083, China
3. School of Life Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai 201210, China
4. James D. Watson Institute of Genome Sciences, Hangzhou 310058, China