Ophthalmology · 2011 · 379 citations · 66 references
66
Reduction of Intraocular Pressure and Glaucoma Progression
Anders Heijl · Archives of Ophthalmology · 2002 · 3.3K citations
Power and sample size calculations
William D. Dupont, W. Dale Plummer · Controlled Clinical Trials · 1990 · 2.1K citations