1 Department of Endocrinology, Zigong First People's Hospital, Zigong Academy of Medical Sciences, Zigong, 643000, Sichuan Province, China. Electronic address: acschml@163.com.
2 Department of Anesthesiology, Zigong First People's Hospital, Zigong Academy of Medical Sciences, Zigong, 643000, Sichuan Province, China. Electronic address: zgyyhospqy@163.com.