For citations:
Levi D.T., Ludannyy R.I., Obukhov Yu.I., Savina A.A., Alesina A.A., Aleksandrova N.V. Procedure for preparation, certification, and storage of a seed lot of the Mycobacterium bovis BCG-I (Russia) vaccine strain. Biological Products. Prevention, Diagnosis, Treatment. 2022;22(3):232-240. (In Russ.) https://doi.org/10.30895/2221-996X-2022-22-3-431