Smirnova L. I., Makavchik S. A., Sukhinin A. A., Prikhodko E. I., Zabrovskaya A.V. Bacteriological monitoring of the pathogens of mastitis in dairy complex of the North-West region of the Russian Federation. Research Journal of Pharmaceutical, Biological and Chemical Sciences. 2019-07-01;10(1):2013-2020.