15. Sasaki H, Sakamoto Y, Schnider C, et al. UV-B Exposure to the Eye Depending on Solar Altitude. Eye & Contact Lens 2011;37:191-5.

15. Sasaki H, Sakamoto Y, Schnider C, et al. UV-B Exposure to the Eye Depending on Solar Altitude. Eye & Contact Lens 2011;37:191-5.