Non-clinical studies of the effectiveness of specialized sports nutrition product for correction of physical efficiency and psycho-physiological condition during intensive loads - T. Pushkina; E. Tokaev; T. Popova; A. Murashev; N. Tropskaya; E. Kislyakova; I. Shashkova; A. Zherebtsov (National Electronic Information Consortium (NEICON), 2020)