1. Department of Critical Care Medicine, The First Affiliated Hospital, Chongqing Medical University, Chongqing, P. R. China
2. Department of Endocrinology, The First Affiliated Hospital, Chongqing Medical University, Chongqing, P. R. China
3. Department of Respiratory Medicine, Children's Hospital, Chongqing Medical University, Chongqing, P. R. China
4. Chongqing Key Laboratory of Ophthalmology, Chongqing, P. R. China