Vijaya Bharathi, P. S., and M. Amirthaveni. “A Comparative Study of 24 Hour Urinary Composition Between Urinary Stone Formers and Healthy Volunteers”. The Indian Journal of Nutrition and Dietetics, vol. 44, no. 5, May 2007, pp. 250-6, http://informaticsjournals.com/index.php/ijnd/article/view/6201.