Craven ER, Walters TR, Williams R, Chou C, Cheetham JK, Schiffman R (August 2005). "Brimonidine and timolol fixed-combination therapy versus monotherapy: a 3-month randomized trial in patients with glaucoma or ocular hypertension". Journal of Ocular Pharmacology and Therapeutics. 21 (4): 337–48. doi:10.1089/jop.2005.21.337. PMID16117698.
Sherwood MB, Craven ER, Chou C, DuBiner HB, Batoosingh AL, Schiffman RM, Whitcup SM (September 2006). "Twice-daily 0.2% brimonidine-0.5% timolol fixed-combination therapy vs monotherapy with timolol or brimonidine in patients with glaucoma or ocular hypertension: a 12-month randomized trial". Archives of Ophthalmology. 124 (9): 1230–8. doi:10.1001/archopht.124.9.1230. PMID16966616.
Goñi FJ (2005). "12-week study comparing the fixed combination of brimonidine and timolol with concomitant use of the individual components in patients with glaucoma and ocular hypertension". European Journal of Ophthalmology. 15 (5): 581–90. doi:10.1177/112067210501500508. PMID16167288.
Craven ER, Walters TR, Williams R, Chou C, Cheetham JK, Schiffman R (August 2005). "Brimonidine and timolol fixed-combination therapy versus monotherapy: a 3-month randomized trial in patients with glaucoma or ocular hypertension". Journal of Ocular Pharmacology and Therapeutics. 21 (4): 337–48. doi:10.1089/jop.2005.21.337. PMID16117698.
Sherwood MB, Craven ER, Chou C, DuBiner HB, Batoosingh AL, Schiffman RM, Whitcup SM (September 2006). "Twice-daily 0.2% brimonidine-0.5% timolol fixed-combination therapy vs monotherapy with timolol or brimonidine in patients with glaucoma or ocular hypertension: a 12-month randomized trial". Archives of Ophthalmology. 124 (9): 1230–8. doi:10.1001/archopht.124.9.1230. PMID16966616.
Goñi FJ (2005). "12-week study comparing the fixed combination of brimonidine and timolol with concomitant use of the individual components in patients with glaucoma and ocular hypertension". European Journal of Ophthalmology. 15 (5): 581–90. doi:10.1177/112067210501500508. PMID16167288.
