12. Tan, D. T., Lam, D. S., Chua, W. H., Shu-Ping, D. F., and Crockett, R. S. (2005) Oneyear multicenter, double-masked, placebo-controlled, parallel safety and efficacy study of 2% pirenzepine ophthalmic gel in children with myopia. Ophthalmology 112, 84

12. Tan, D. T., Lam, D. S., Chua, W. H., Shu-Ping, D. F., and Crockett, R. S. (2005) Oneyear multicenter, double-masked, placebo-controlled, parallel safety and efficacy study of 2% pirenzepine ophthalmic gel in children with myopia. Ophthalmology 112, 84