33.Tan, N. W., Saw, S. M., Lam, D. S., Cheng, H. M., Rajan, U., and Chew, S. J. (2000) Temporal variations in myopia progression in Singaporean children within an academic year. Optom Vis Sci 77, 465-472

33.Tan, N. W., Saw, S. M., Lam, D. S., Cheng, H. M., Rajan, U., and Chew, S. J. (2000) Temporal variations in myopia progression in Singaporean children within an academic year. Optom Vis Sci 77, 465-472