ผู้ป่วย 23550 ได้รับขั้นตอนใดเป็นครั้งแรกนับตั้งแต่ปี 2103 ไม่จำเป็นต้องใช้ตารางทั้งหมด
what procedure did patient 23550 receive the first time since 2103.It is not neccessary to use all the tables.
 diagnoses_icd:  row_id [ number]  subject_id [ number]  hadm_id [ number]  icd9_code [ text]  charttime [ time] 
SELECT d_icd_procedures.short_title FROM d_icd_procedures WHERE d_icd_procedures.icd9_code IN (SELECT procedures_icd.icd9_code FROM procedures_icd WHERE procedures_icd.hadm_id IN (SELECT admissions.hadm_id FROM admissions WHERE admissions.subject_id = 23550) AND STRFTIME('%y', procedures_icd.charttime) >= '2103' ORDER BY procedures_icd.charttime LIMIT 1)