1. First Clinical College, Shandong University of Traditional Chinese Medicine, Jinan, P. R. China
2. Department of Ophthalmology, Affiliated Eye Hospital of Shandong University of Traditional Chinese Medicine, Jinan, P. R. China
3. Shandong Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases, Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases in Universities of Shandong, Eye Institute of Shandong University of Traditional Chinese Medicine, Jinan, P. R. China
4. Department of Microbiology, Shandong Academy of Medical Sciences, Jinan, People’s Republic of China