For citations:
Tanasova A.S., Ershova T.S., Zaitsev I.V., Zaitsev V.F. THE CONTENT OF SOME MICROELEMENTS IN THE GASTROINTESTINAL TRACT OF AQUATIC MAMMALS AND HUMANS. South of Russia: ecology, development. 2017;12(2):237-244. (In Russ.) https://doi.org/10.18470/1992-1098-2017-2-237-244