A three-month, multicentre, double masked study of the safety and efficacy of travoprost 0.004 %/timolol 0.5 % ophthalmic solution compared to travoprost 0.004 % ophthalmic solution and timolol 0.5 % dosed concomitantly in subjects with open angle or ocular hypertension - Hughes, B A; Bacharach, J; Craven, R E (J Glaucoma, 2005)
et al.