Lin, E., L. Ho, M.-S. Lin, M.-H. Huang, and W.-C. Chen. “WU-LING-SAN FORMULA PROPHYLAXIS AGAINST RECURRENT CALCIUM OXALATE NEPHROLITHIASIS - A PROSPECTIVE RANDOMIZED CONTROLLED TRIAL”. African Journal of Traditional, Complementary and Alternative Medicines, vol. 10, no. 5, June 2013, pp. 199-0, https://journals.athmsi.org/index.php/ajtcam/article/view/1718.