19. Cho P., Cheung S.W., Edwards M. The Longitudinal Orthokeratology Research in Children (LORIC) in Hong Kong: A Pilot Study on Refractive Changes and Myopic Control. 2005. 30:71–80.

19. Cho P., Cheung S.W., Edwards M. The Longitudinal Orthokeratology Research in Children (LORIC) in Hong Kong: A Pilot Study on Refractive Changes and Myopic Control. 2005. 30:71–80.