instruction: when was patient 006-103228 prescribed medications through the subcut route for the first time in the last hospital encounter?
response: SELECT medication.drugstarttime FROM medication WHERE medication.patientunitstayid IN (SELECT patient.patientunitstayid FROM patient WHERE patient.patienthealthsystemstayid IN (SELECT patient.patienthealthsystemstayid FROM patient WHERE patient.uniquepid = '006-103228' AND NOT patient.hospitaldischargetime IS NULL ORDER BY patient.hospitaladmittime DESC LIMIT 1)) AND medication.routeadmin = 'subcut' ORDER BY medication.drugstarttime LIMIT 1