The Value of Injection Therapy with Botulinum Toxin in Pain Treatment of Primary Chronic Anal Fissures Compared to Anal Dilation, and Local Nifedipine in Combination with Lidocaine. - Andreevski, Vladimir; Volkanovska, Ance; Deriban, Gjorgji; Josifovic, Fani Licoska; Krstevski, Gregor; Nikolova, Dafina; Dimitrova, Magdalena Genadieva; Stardelova, Kalina Grivceva; Serafimovski, Vladimir (Contributions / Prilozi (1857-9345), 2023)