ความสูงแรกของผู้ป่วย 19428 คือเท่าใดตั้งแต่ 07/2105 ไม่จำเป็นต้องใช้ตารางทั้งหมด
what was the first height of patient 19428 since 07/2105.It is not neccessary to use all the tables.
 prescriptions:  row_id [ number]  subject_id [ number]  hadm_id [ number]  startdate [ time]  enddate [ time]  drug [ text]  dose_val_rx [ text]  dose_unit_rx [ text]  route [ text] 
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 = 19428)) AND chartevents.itemid IN (SELECT d_items.itemid FROM d_items WHERE d_items.label = 'admit ht' AND d_items.linksto = 'chartevents') AND STRFTIME('%y-%m', chartevents.charttime) >= '2105-07' ORDER BY chartevents.charttime LIMIT 1