Objective:To investigate the allocation level and allocation structure of electrocardiograph(ECG) in different grades hospitals of urban and rural areas of Liaoning province and their changing trend. Methods:The allocation situation of 585 hospitals in urban and rural area of Liaoning province was surveyed by using questionnaire,and then the allocation per hospital,brand structure and price change of ECG in different grades hospitals were calculated and analyzed. Results:There were 515 questionnaires were t...