The course of cervical syndrome ranged from 1 week to 12 years,with an average of 1 year and 3.5 months,and the course of coronary artery disease (CAD) from 1 week to 11 years.

• 颈椎病病程1周~12年；平均1年3.；5个月。 合并有冠心病病程1周~11年。