Urinary sodium-to-potassium ratio and plasma renin and aldosterone concentrations in normotensive children: implications for the interpretation of results.

Martinez-Aguayo AG, Campino C, Rodriguez-Fernandez M, Poggi H, D'apremont I, Moore R, Garcia H, Solari S, Allende F, Peredo S, Trincado C, Carvajal C, Arancibia M, Ossa JT, Sifaqui S, Fardella CE, Baudrand R

J Hypertens