Kovalev L.I., Khudaĭdatov A.I., Galiuk M.A., Shishkin S.S., Niiazbekova A.S., Gelashvili I.N., Zavalishin I.A. (1994) Change in the composition of human skeletal muscles in amyotrophic lateral sclerosis. Voprosy Meditsinskoi Khimii, 40(5), 42-45.

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Kovalev L.I. et al., "Change in the composition of human skeletal muscles in amyotrophic lateral sclerosis." Voprosy Meditsinskoi Khimii 40.5 (1994): 42-45.

Kovalev, L. I., Khudaĭdatov, A. I., Galiuk, M. A., Shishkin, S. S., Niiazbekova, A. S., Gelashvili, I. N., Zavalishin, I. A. (1994). Change in the composition of human skeletal muscles in amyotrophic lateral sclerosis. Voprosy Meditsinskoi Khimii, 40(5), 42-45.