Rodríguez Sánchez, C. (2008). Oxytetracycline and Gentamicin: Two Clinically relevant Antimicrobials Widely Used by Costa Rican Farmers. Implications of Their Use Outside Clinical Cettings and Request for Action. Revista Médica De La Universidad De Costa Rica, 2(2), 64–71. https://doi.org/10.15517/rmu.v2i2.7848