ครั้งสุดท้ายที่ผู้ป่วย 54825 ได้รับใบสั่งยาแอสไพริน ec ในปี 12/ปีที่แล้วคืออะไร?ไม่จำเป็นต้องใช้ตารางทั้งหมด
what was the last time patient 54825 received a prescription for aspirin ec, in 12/last year?It is not neccessary to use all the tables.
 outputevents:  row_id [ number]  subject_id [ number]  hadm_id [ number]  icustay_id [ number]  charttime [ time]  itemid [ number]  value [ number] 
SELECT prescriptions.startdate FROM prescriptions WHERE prescriptions.hadm_id IN (SELECT admissions.hadm_id FROM admissions WHERE admissions.subject_id = 54825) AND prescriptions.drug = 'aspirin ec' AND DATETIME(prescriptions.startdate, 'start of year') = DATETIME(CURRENT_TIME(), 'start of year', '-1 year') AND STRFTIME('%m', prescriptions.startdate) = '12' ORDER BY prescriptions.startdate DESC LIMIT 1