Travatan Z Prescribing Information. Alcon Laboratories. Accessed online 4/13/2016 from http://www.ecatalog.alcon.com/pi/TravatanZ_US_en.pdf
Travoprost ophthalmic. Clinical Pharmacology Online 2016. Accessed 4/13/2016 from http://www.clinicalpharmacology.com
Lexi-interact Online 2016. Accessed 4/13/2016 from http://www.uptodate.com