L. Reveiz, C. Saenz, R. T. Murasaki, L. G. Cuervo, and L. Ramalho, “Progress and challenges of clinical trials registration in Latin America and the caribbean’s”, Rev Peru Med Exp Salud Publica, vol. 28, no. 4, Jan. 2014, doi: 10.17843/rpmesp.2011.284.434.