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D. Kuznetsov
Centre of Parasitology, A. N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, 119049, Moscow, Mytnaya str., h. 28, build. 1, Russia
A. Khrustalev
All-Russian K. I. Skryabin Institute for Helminthology, Moscow, Russia
M. Batchimeg
Mongolian State University of Education, Ulaanbaatar, Mongolia
G. Danzan
Mongolian State University of Education, Ulaanbaatar, Mongolia