¡¶ÐÄÔàÔÓÖ¾¡·
¹ý¿¯²éÑ¯Ò³Ãæ
¹Ø¼ü´ÊÖаüÀ¨
coronary disease����electrocardiography����QT dispersion
µÄÎÄÕÂ