Thakkinstian, A., and J. C. Nickel. “Efficacy of Intravesical Chondroitin Sulphate in Treatment of Interstitial cystitis/Bladder Pain Syndrome (IC/BPS): Individual Patient Data (IPD) Meta-Analytical Approach”. Canadian Urological Association Journal, vol. 7, no. 5-6, June 2013, pp. 195-00, doi:10.5489/cuaj.1257.