Blindness and poverty
SUN Bao-chen, HU Ai-lian, WU Min, ZHANG Xu, YANG Xiao-hui, ZHENG Yuan-yuan
International Review of Ophthalmology . 2015, (6): 361 -367 .  DOI: 10. 3760/cma. j. issn. 1673-5803. 2015. 06. 001