จนกระทั่ง 1 ปีที่แล้ว hrt revas byps anas nec เสร็จสิ้นไปกี่ครั้งแล้ว?ไม่จำเป็นต้องใช้ตารางทั้งหมด
until 1 year ago, how many times was the hrt revas byps anas nec done?It is not neccessary to use all the tables.
 labevents:  row_id [ number]  subject_id [ number]  hadm_id [ number]  itemid [ number]  charttime [ time]  valuenum [ number]  valueuom [ text] 
SELECT COUNT(*) FROM procedures_icd WHERE procedures_icd.icd9_code = (SELECT d_icd_procedures.icd9_code FROM d_icd_procedures WHERE d_icd_procedures.short_title = 'hrt revas byps anas nec') AND DATETIME(procedures_icd.charttime) <= DATETIME(CURRENT_TIME(), '-1 year')