1. Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, China.
2. National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.
3. Hunan Drug Shortage Surveillance and Early Warning Center, Changsha, China.
4. Department of Epidemiology and Health Statistics, XiangYa School of Public Health, Central South University, Changsha, China.
5. Department of General Surgery, Xiangya Hospital, Central South University, Changsha, China.