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Cryobiology|October 1, 1991
Some seasonal changes in the thecal gland in the ovaries of hibernators (Citellus citellus L.)T Tsvetkov, T TakevaCryobiology|April 1, 1989
The ovarium of the hibernator (Citellus citellus L.) after spring arousalT Tsvetkov, T TakevaCryobiology|February 1, 1989
Cytology of oocytes in ground squirrels (Citellus citellus L.)T Tsvetkov, T TakevaCryobiology|October 1, 1989
Studies on the estrus cycle of the ground squirrel (Citellus citellus L.) at experimentally induced hibernationT Tsvetkov, T TakevaCryobiology|December 1, 1988
Changes in interstitial gland in the ovary of the bat Rinolaphus eurale Blas: arousal from hibernationT Tsvetkov, T TakevaCryobiology|June 1, 1988
Histoenzymatic activity of the delta 5-3 beta-hydroxysteroid dehydrogenase of ovary in hibernators (Citellus citellus L)T Tsvetkov, T TakevaCryobiology|August 1, 1989
Seasonal changes of the ovarian atretic follicles of the ground squirrel (Citellus citellus L.)T Tsvetkov, T TakevaAkusherstvo I Ginekologiia|January 1, 1989
[Circulating immune complexes in women with prolonged pregnancy]N Milchev, B Pekhlivanov, M Krŭsteva, et al.Akusherstvo I Ginekologiia|January 1, 1990
[Delivery after cesarean section based on the data of the Obstetrical-Gynecological Clinic of the Higher Medical Institute in Plovdiv for the period of 1984-1988]N Milchev, B Pekhlivanov, T Piperkov, et al.Cryobiology|October 1, 1986
A quantitative evaluation of the extent of inner mitochondrial membrane destruction after freezing-thawing based on functional studiesT Tsvetkov, L Tsonev, I MinkovPageof 3