น้ำหนักตัวของผู้ป่วย 7241 วัดล่าสุดเมื่อวันที่ 05/2103 เป็นเท่าใด? ไม่จำเป็นที่จะต้องใช้ตารางทั้งหมด
how much was patient 7241's body weight last measured in 05/2103?It is not neccessary to use all the tables.
 procedures_icd:  row_id [ number]  subject_id [ number]  hadm_id [ number]  icd9_code [ text]  charttime [ time] 
SELECT chartevents.valuenum FROM chartevents WHERE chartevents.icustay_id IN (SELECT icustays.icustay_id FROM icustays WHERE icustays.hadm_id IN (SELECT admissions.hadm_id FROM admissions WHERE admissions.subject_id = 7241)) AND chartevents.itemid IN (SELECT d_items.itemid FROM d_items WHERE d_items.label = 'admit wt' AND d_items.linksto = 'chartevents') AND STRFTIME('%y-%m', chartevents.charttime) = '2103-05' ORDER BY chartevents.charttime DESC LIMIT 1