[1]
A. S. Borges, B. P. de Barros, A. L. G. Alves, P. C. Ciarline, P. L. Bicudo, and A. Kohayagawa, “Calcium and phosphorus fractional excretion in Nellore before and during pregnancy”, PAB, vol. 35, no. 5, pp. 1017–1022, May 2000.