AGE-RELATED MORPHOLOGICAL CHANGES IN INTIMA OF GREAT SAPHENOUS VEIN IN HEALTH AND IN VENOUS DISEASE Article Abduvosidov Kh.A., Chudnykh S.M., Astashov V.V., Chekmareva I.A., Kravchenko E.V. Archiv Euromedica. European Scientific Society. Vol. 11. 2021. P. 20-22