Lietman S, et al. Hypercalcemia in children and adolescents. Current Opinion in Pediatrics: Aug 2010; 22(4): 508–515. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2967024/.
Sindhar S, Lugo M, Levin MD, et al. Hypercalcemia in patients with Williams-Beuren syndrome. J Pediatr. 2016 Nov;178:254-260.e4. doi: 10.1016/j.jpeds.2016.08.027. Epub 2016 Aug 26.
Calcium. Lab Tests Online. https://labtestsonline.org/understanding/analytes/calcium/tab/test. Updated May 13, 2015. Accessed June 2017.