Morphological and immunohistochemical peculiarities of placental-endometrial structures in women with benign and malignant tumors oleh T. D. Zadorozhna, V. V. Podolsky, O. I. Parnytska, O. I. Eschenko, S. M. Kylyhevich, T. M. Archakova, Yu. V. Davydova, N. Ya. Skrypchenko, G. O. Grebinychenko