1. Department of Cardiology Gansu Provincial Hospital No. 204, Donggang West Road, Chengguan District Lanzhou Gansu 730000 China
2. Department of Cardiology Shanxi Cardiovascular Hospital Affiliated With Shanxi Medical University Yifen Street 18 Taiyuan Shanxi 030024 China
3. Department of Pathology Gansu Provincial Hospital No. 204, Donggang West Road, Chengguan District Lanzhou Gansu 730000 China
4. Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin International Joint Research and Development Centre of Ophthalmology and Vision Science, Eye Institute and School of Optometry Tianjin Medical University Eye Hospital No. 251, Fukang Road, Nankai District Tianjin 300384 China