TY JOUR TI MORPHOLOGICAL CHARACTERISTICS OF MAST CELLS IN PIGS’ PLACENTA AT PHYSIOLOGICAL AND PATHOLOGICAL PREGNANCY KW pigs KW pregnancy KW mummification KW histo- logical examination KW mastocytes JO Bulletin of KSAU AU Lazareva, A.A. AU Drozdova, L.I. PY 2019 IS PB Krasnoyarsk State Agrarian University