world thrombosis day 13 october. with thrombosis

thrombosis vessel blood world stroke global artery illustration vector vascular vein health care block medical thrombus cholesterol stenosis clot circulation cardiovascular disease coagulation system 3d bleeding bloodstream embolism pulmonary deep dvt venous arteriosclerosis embolus atherosclerosis medicine vessels phlebitis patient phlebologist phlebology varicose doppler varices