Garcia Quesada, J., E. Hernández Zúñiga, and M. Granados Zamora. “Prevalence of Mutations Methylentetrahydrofolate Reductase (MTHFR), Prothrombin (II G20210G/G20210A) and Leyden V Factor in Patients Undergoing Studies by Thrombophilic Profile. Hospital San Vicente De Paul. Costa Rica, 2017 to 2018”. Población Y Salud En Mesoamérica, vol. 19, no. 2, June 2021, doi:10.15517/psm.v19i2.43749.