Ketata, S., H. Ketata, A. Sahnoun, M. Haj Slimen, H. Fakhfakh, A. Bahloul, and M. Mhiri. “Laterality of Symptomatic Recurrent Calcium Nephrolithiasis”. African Journal of Urology, vol. 14, no. 3, Oct. 2008, pp. 143-6, doi:10.4314/aju.v14i3.8242.