K. Salas-Ramírez and D. Rojas-Valverde, “ATTITUDES TOWARDS DOPPING AND PERFECTIONISM IN SOCCER, INDOOR SOCCER, AND BASKETBALL PROFESSIONAL ATHLETES IN COSTA RICA”, MHSalud, vol. 16, no. 1, pp. 1–14, Nov. 2018, doi: 10.15359/mhs.16-1.5.