For citations:
Achkasov S.I., Khryukin R.Yu., Zharkov E.E., Ponomarenko A.A., Fomenko O.Yu., Klopkov N.I., Kamaeva Z.Z., Lebedeva E.Yu., Sagidova K.I. Long-Term Results of Medical and Surgical Methods for Elimination of the Internal Anal Sphincter Spasm in Chronic Anal Fissure (NCT03855046). Russian Journal of Gastroenterology, Hepatology, Coloproctology. 2023;33(5):88-97. https://doi.org/10.22416/1382-4376-2023-33-5-88-97