ยาสี่ชนิดที่ต้องสั่งจ่ายบ่อยที่สุดสำหรับผู้ป่วยที่ได้รับยาออกซีโคโดน-อะเซตามิโนเฟนอมฤตก่อนหน้านี้ในเดือนเดียวกันจนถึงปี 2104 คืออะไร? ไม่จำเป็นที่จะต้องใช้ตารางทั้งหมด
what are the four most frequently prescribed drugs for patients who were also prescribed oxycodone-acetaminophen elixir previously during the same month until 2104?It is not neccessary to use all the tables.
 patients:  row_id [ number]  subject_id [ number]  gender [ text]  dob [ time]  dod [ time] 
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 = 'oxycodone-acetaminophen elixir' AND STRFTIME('%y', prescriptions.startdate) <= '2104') AS t1 JOIN (SELECT admissions.subject_id, prescriptions.drug, prescriptions.startdate FROM prescriptions JOIN admissions ON prescriptions.hadm_id = admissions.hadm_id WHERE STRFTIME('%y', prescriptions.startdate) <= '2104') AS t2 ON t1.subject_id = t2.subject_id WHERE t1.startdate < t2.startdate AND DATETIME(t1.startdate, 'start of month') = DATETIME(t2.startdate, 'start of month') GROUP BY t2.drug) AS t3 WHERE t3.c1 <= 4