![Parapapillary Beta Zone in Primary School Children in Beijing: Associations With Outdoor Activity]()
Parapapillary Beta Zone in Primary School Children in Beijing: Associations With Outdoor ActivityGuo, Yin; Liu, Li Juan; Xu, Liang; Lv, Yan Yun; Tang, Ping; Feng, Yi; Zhou, Jin Qiong; Meng, Meng; Jonas, Jost B. · Investigative Opthalmology & Visual Science · 2014