Cross-sectional study of retinal vascular diameters in elderly population in Beijing
WANG Shuang, WEI Chuan-chuan,LIU Xue, XU Liang, WANG Ya-xing.
Ophthalmology in China . 2018, (4): 246 -253 .  DOI: 10. 13281/j. cnki. issn.1004-4469. 2018. 04. 002