by Pantus, A. V., Rozhko, M. M., Kovalchuk, N. E., Pantus, P. V.
Published in Visnyk problem biolohiï i medyt︠s︡yny (01.12.2020)

by Pantus, A. V., Rozhko, M. M., Bagrii, M. M., Kovalchuk, N. E., Yarmoshuk, I. R.
Published in Visnyk problem biolohiï i medyt︠s︡yny (01.04.2019)

by Bolgova, L S, Gordienko, T M, Mantsurov, N E, Krakhmalev, S N, Koval'chuk, E N
Published in Klinicheskaia laboratornaia diagnostika (01.03.2009)

by Pantus, A. V., Rozhko, M. M., Kovalchuk, N. E., Yarmoshuk, I. R.
Published in Visnyk problem biolohiï i medyt︠s︡yny (2021)

by Pantus, A. V., Rozhko, M. M., Kovalchuk, N. E., Yarmoshuk, I. R., Grekulyak, V. V.
Published in Visnyk problem biolohiï i medyt︠s︡yny (2019)

by Koval'chuk, E N
Published in Gigiena i sanitarija (01.08.1967)

by Kononenko, N G, Koval'chuk, E N, Galakhin, K A, Sil'chenko, S A, Iurchenko, O V, Gol'dshmid, B Ia
Published in Hirurgija (Moskva) (01.09.1994)

by Vorob'eva, L I, Galakhin, K A, Koval'chuk, E N
Published in Likars'ka sprava (01.07.1993)

by Ganul, V L, Galakhin, K A, Koval'chuk, E N, Troitskaia, I N
Published in Voprosy onkologij (1989)

by Galakhin, K A, Tolstopiatov, B A, Koval'chuk, E N, Troitskaia, I N
Published in Voprosy onkologij (1990)

by Bur'ianov, A F, Koval'chuk, E N, Klochko, P I
Published in Voprosy onkologij (1980)

by Prokof'eva, N G, Koval'chuk, E N
Published in Fel'dsher i akusherka (1982)

by Prokof'eva, N G, Koval'chuk, E N
Published in Fel'dsher i akusherka (1982)

by Koval'chuk, E N, Prokof'eva, N G
Published in Fel'dsher i akusherka (01.09.1979)

by Koval'chuk, E N, Prokof'eva, N G
Published in Fel'dsher i akusherka (01.01.1974)

by Prokof'eva, N G, Koval'chuk, E N, Malygina, V F
Published in Fel'dsher i akusherka (01.06.1978)

by Velichko, A A, Koval'chuk, E N, Prokof'eva, N G
Published in Fel'dsher i akusherka (01.08.1974)

by Dorfman, M V, Levchenko, A M, Petruk, D A, Koval'chuk, E N
Published in Grudnaia khirurgiia (Moscow, Russia) (01.11.1987)

by Shchepotin, I B, Smolanka, I I, Koval'chuk, E N, Skoroda, L V
Published in Klinicheskaia khirurgiia (1987)

by Petrova, I S, Iatsyk, V I, Chernyĭ, V A, Koval'chuk, E N, Bobokal, V N
Published in Vrachebnoe delo (01.11.1985)