Goloktionov Nikolaj Aleksandrovich, Kashnikov Vladimir Nikolaevich, Tkalich Olga Vladimirovna, Ponomarenko Aleksej Alekseevich, Khryukin Roman Yurevich, Krstic Predrag, Slozhenikin Sergej Valerevich, Zagryadskiy Evgenij Alekseevich, Fomenko Oksana Yurevna, Nekhrikova Svetlana Viktorovna, Arslanbekova Karina Ibakovna, Misikov Viktor Kazbekovich, Orlova Aleksandra Sergeevna, Zharkov Evgenij Evgenevich. Comparison of different doses botulinum toxin type a efficacy in chronic anal fissure treatment. Serbian Journal of Experimental and Clinical Research. University of Kragujevac. 2022. V. 23. No 1. P. 13-28