instruction: were there any organisms found in patient 031-19622's last microbiological bronchial lavage test until 3 years ago?
response: SELECT COUNT(*) > 0 FROM microlab WHERE microlab.patientunitstayid IN (SELECT patient.patientunitstayid FROM patient WHERE patient.patienthealthsystemstayid IN (SELECT patient.patienthealthsystemstayid FROM patient WHERE patient.uniquepid = '031-19622')) AND microlab.culturesite = 'bronchial lavage' AND DATETIME(microlab.culturetakentime) <= DATETIME(CURRENT_TIME(), '-3 year') ORDER BY microlab.culturetakentime DESC LIMIT 1