ในเดือนก่อนหน้านี้ผู้ป่วย 016-18150 มีเอาต์พุต amt-blake เดรนเอาท์พุตหรือไม่ ไม่จำเป็นต้องใช้ตารางทั้งหมด
in the previous month has patient 016-18150 had any output amt-blake drain output?It is not neccessary to use all the tables.
 vitalperiodic:  vitalperiodicid [ number]  patientunitstayid [ number]  temperature [ number]  sao2 [ number]  heartrate [ number]  respiration [ number]  systemicsystolic [ number]  systemicdiastolic [ number]  systemicmean [ number]  observationtime [ time] 
SELECT COUNT(*) > 0 FROM intakeoutput WHERE intakeoutput.patientunitstayid IN (SELECT patient.patientunitstayid FROM patient WHERE patient.patienthealthsystemstayid IN (SELECT patient.patienthealthsystemstayid FROM patient WHERE patient.uniquepid = '016-18150')) AND intakeoutput.cellpath LIKE '%output%' AND intakeoutput.celllabel = 'output amt-blake drain' AND DATETIME(intakeoutput.intakeoutputtime, 'start of month') = DATETIME(CURRENT_TIME(), 'start of month', '-1 month')