The confocal scanning laser ophthalmoscopy ancillary study to the ocular hypertension treatment study: study design and baseline factors.
Zangwill LM, Weinreb RN, Berry CC, Smith AR, Dirkes KA, Liebmann JM, Brandt JD, Trick G, Cioffi GA, Coleman AL, Piltz-Seymour JR, Gordon MO, Kass MA. The confocal scanning laser ophthalmoscopy ancillary study to the ocular hypertension treatment study: study design and baseline factors. Am J Ophthalmol. 2004 Feb; 137(2):219-27.