Lurie, F., Passman, M., Meisner, M., Dalsing, M., Masuda, E., Welch, H., . . . Wakefield, T. (2020). The 2020 update of the CEAP classification system and reporting standards. Journal of Vascular Surgery: Venous and Lymphatic Disorders, 8(3), 342-352. https://doi.org/10.1016/j.jvsv.2019.12.075

Lurie, Fedor, et al. "The 2020 Update of the CEAP Classification System and Reporting Standards." Journal of Vascular Surgery: Venous and Lymphatic Disorders 8, no. 3 (2020): 342-352. https://doi.org/10.1016/j.jvsv.2019.12.075.

Lurie, Fedor, et al. "The 2020 Update of the CEAP Classification System and Reporting Standards." Journal of Vascular Surgery: Venous and Lymphatic Disorders, vol. 8, no. 3, 2020, pp. 342-352, https://doi.org/10.1016/j.jvsv.2019.12.075.