Machado-Alba, J. E., and V. Hoyos-Soto. “Frequency of Coprescription and Potential Risk of Bronchospasm in Colombian Patients Users of Topical Antiglaucomatous Betablockers and Bronchodilators”. Vitae, vol. 21, no. 2, July 2014, pp. 107-13, doi:10.17533/udea.vitae.15590.