Roessler, G., Vobig, M., Walter, P., & Mazinani, B. A. (2019). Ocular side effects of levitra ® (vardenafil) - results of a double-blind crossover study in healthy male subjects. Drug design, development and therapy, 13, 37-43. https://doi.org/10.2147/DDDT.S186633
Chicago Style (17th ed.) CitationRoessler, Gernot, Michael Vobig, Peter Walter, and Babac AE Mazinani. "Ocular Side Effects of Levitra ® (vardenafil) - Results of a Double-blind Crossover Study in Healthy Male Subjects." Drug Design, Development and Therapy 13 (2019): 37-43. https://doi.org/10.2147/DDDT.S186633.
MLA (9th ed.) CitationRoessler, Gernot, et al. "Ocular Side Effects of Levitra ® (vardenafil) - Results of a Double-blind Crossover Study in Healthy Male Subjects." Drug Design, Development and Therapy, vol. 13, 2019, pp. 37-43, https://doi.org/10.2147/DDDT.S186633.