For citations:
Zharkov E.E., Goloktionov N.A., Sagidova K.I., Lebedeva E.Yu., Kostarev I.V. Effectiveness of 0.3 % nifedipine gel combined with 2.0 % lidocaine and BTA 80 U in treatment of chronic anal fissure. Pilot randomized study. Preliminary results. Koloproktologia. 2024;23(3):33-40. https://doi.org/10.33878/2073-7556-2024-23-3-33-40