1. Department of Laboratory Medicine, Xing’an League People’s Hospital, Xing’an League, Ulanhot, Inner Mongolia, China (mainland)
2. Department of Laboratory Medicine, Ulanhot People’s Hospital, Xing’an League, Ulanhot, Inner Mongolia, China (mainland)
3. Department of Laboratory Medicine, Keyou Qianqi People’s Hospital, Xing’an League, Tongliao, Inner Mongolia, China (mainland)