TY JOUR TI THE INFLUENCE OF METHOTREXATE IMMUNOSUPPRESSIVE EFFECT ON THE STRUCTURE OF RATS’ SPLEEN AT THE SECOND WEEK OF GESTATION IN THE EXPERIMENT KW spleen KW gestation KW immunosuppression KW methotrexate KW rats JO Crimea Journal of Experimental and Clinical Medicine AU Zaharov, A.A. AU Lozychenko, V.G. PY 2025 IS 15 PB V.I. Vernadsky Crimean Federal University