Collaborative Nomal-Tension Glaucoma Study Group: Comparison of glaucomatous progression between untreated patients with nomal-tension glaucoma and patients with therapeutically reduced intraocular pressures. Am J Ophthalmol, 126: 487-497,1998.
Collaborative Nomal-Tension Glaucoma Study Group: The effectiveness of intraocular pressure reduction in the treatment of nomal-tension glaucoma. Am J Ophthalmol, 126: 498-504, 1998.