ISOLATION OF ANTIGENS FROM ECHINOCOCCUS GRANULOSUS CYSTS BY GRADUAL MEMBRANE FILTRAION Article Ermolaev A.V., Chernikova E.A., Dalin M.V., Zbarsky E.A. Meditsinskaya Parazitologiya i Parazitarnye Bolezni. 1989. P. 57-61
