Romero Vecchione, E., Vásquez, J., Lema, G., Guerrero, H., Rosa, F. and Bermúdez, M. 2013. Low urinary dopamine excretion associated to low sodium excretion in normotensive Piaroa Amazonian ethnia compared to urban subjects. Investigación Clínica. 36, 2 (Jul. 2013).