Expert consensus on some problems of cerebral and carotid vascular ultrasonography (Part of carotid)The Professional Committee of Vascular Ultrasound of Stroke Prevention and Treatment Expert, Committee of the National Health Commission,the Professional Committee of Superficial Organ and Peripheral Vascular Ultrasound of the Chinese Medical Ultrasound Engineering, the Professional Committee of Craniocerebral and Cervical Vascular Ultrasound of the Chinese Medical Ultrasound EngineeringChinese Journal of Cerebrovascular Diseases2020, No.062424012025-08