Tan, Guan Hee, Cynthia Kuk, and Alexandre R. Zlotta. 2019. “Are There Differences Among Bacillus Calmette-Guérin (BCG) Strains Regarding Their Clinical Efficacy in the Treatment of Non-Muscle-Invasive Bladder Cancer? The Jury Is Still Out But the Answer Is Likely No”. Canadian Urological Association Journal 14 (2):E54-6. https://doi.org/10.5489/cuaj.5923.