HETEROGENEITY OF THE THYMUS EPITHELIOCYTES AND THEIR ULTRASTRUCTURE IN NEWBORN RATS WITH DISTURBED BALANCE OF GLUCOCORTICOIDS [GETEROGENNOST' ÉPITELIOTSITOV TIMUSA I IKH UL'TRASTRUKTURA U NOVOROZHDENNYKH KRYS PRI DISBALANSE GLIUKOKORTIKOIDOV.] СтатьяTorbek B.E., Iurina N.A.Морфология. Том 114. 1998. С. 54-59