n BSMU Clinic Professor Akhmadeeva L. R. held a regular master class on precision control of A type botulinum toxin injection using electrical miostimulation. Professor and the participants (students, residents and physicians) observed methods of choosing muscles and doses, additional opportunities while using a portable NCS system "MIST" to clarify the localization of the points for injection. We thank the administration of BSMU and BSMU Clinic for their constant support and assistance and providing conditions for further professional growth of BSMU students and practical specialists.