Cross-sectional study of retinal vascular fractal dimension in elderly population in Beijing
WEI Chuan-chuan, WANG Shuang, PENG Xiao-yan, LIU Xue, XU Liang, WANG Ya-xing
Ophthalmology in China . 2018, (5): 372 -376 .  DOI: 10.13281/j.cnki.issn.1004-4469.2018.05.011