Reply from Authors re: Prokar Dasgupta. Volume matters: Bladder injections of botulinum toxin type A. Eur Urol 2012;61:1185-6: Yes, Volume matters: Bladder injections of botulinum toxin type A - Coelho, A.; Cruz, F.; Cruz, C.D.; Avelino, A. (European Urology, 2012)