ในบรรดาผู้ป่วยที่ได้รับยา Dakins 1/2 มียาอะไรบ้างที่สั่งจ่ายบ่อยที่สุดในเวลาเดียวกันในปีนี้? ไม่จำเป็นต้องใช้ตารางทั้งหมด
among patients who were prescribed dakins 1/2 strength, what were the four most commonly prescribed drugs at the same time, in this year?It is not neccessary to use all the tables.
 d_items:  row_id [ number]  itemid [ number]  label [ text]  linksto [ text] 
SELECT t3.drug FROM (SELECT t2.drug, DENSE_RANK() OVER (ORDER BY COUNT(*) DESC) AS c1 FROM (SELECT admissions.subject_id, prescriptions.startdate FROM prescriptions JOIN admissions ON prescriptions.hadm_id = admissions.hadm_id WHERE prescriptions.drug = 'dakins 1/2 strength' AND DATETIME(prescriptions.startdate, 'start of year') = DATETIME(CURRENT_TIME(), 'start of year', '-0 year')) AS t1 JOIN (SELECT admissions.subject_id, prescriptions.drug, prescriptions.startdate FROM prescriptions JOIN admissions ON prescriptions.hadm_id = admissions.hadm_id WHERE DATETIME(prescriptions.startdate, 'start of year') = DATETIME(CURRENT_TIME(), 'start of year', '-0 year')) AS t2 ON t1.subject_id = t2.subject_id WHERE DATETIME(t1.startdate) = DATETIME(t2.startdate) GROUP BY t2.drug) AS t3 WHERE t3.c1 <= 4