Kazan medical journalKazan medical journal0368-48142587-9359Eco-Vector6213210.17816/kazmj62132Research ArticleSECOND SCIENTIFIC SESSION of G. N. I. INSTITUTE OF VITAMINOLOGY, Ministry of Health of the USSR--info@eco-vector.com290919594051101112802202128022021Copyright © 1959, - -.1959<p>S. V. Andreev, A. A. Znachkova, Yu. S. Chechulin (Moscow), studying the effect of cobalamin (B<sub>12</sub>) on the regeneration of the severed nerves of the arm and on the restoration of its functions in 50 patients, received an earlier and more perfect recovery functions of the injured nerve than with other stimulatory therapies.</p>Kazan Medical archiveКазанский медицинский архив