Autosomal dominant distal renal tubular acidosis in two pediatric patients with mutations in the SLC4A1 gene. Can the maximum urinary pCO2 test be normal? Norma E. Guerra Hernández; Circe Gómez Tenorio; Laura Paloma Méndez Silva; Teresa Moraleda Mesa; Laura I. Escobar; Carolina Salvador; Rosa Vargas Poussou; Víctor M. García Nieto;