instruction: when was the last time that patient 003-48563 was diagnosed with pleural effusion - bilateral?
response: SELECT diagnosis.diagnosistime FROM diagnosis WHERE diagnosis.patientunitstayid IN (SELECT patient.patientunitstayid FROM patient WHERE patient.patienthealthsystemstayid IN (SELECT patient.patienthealthsystemstayid FROM patient WHERE patient.uniquepid = '003-48563')) AND diagnosis.diagnosisname = 'pleural effusion - bilateral' ORDER BY diagnosis.diagnosistime DESC LIMIT 1