instruction: what is the name of the medication that patient 016-30273 was first prescribed in 09/2103?
response: SELECT medication.drugname FROM medication WHERE medication.patientunitstayid IN (SELECT patient.patientunitstayid FROM patient WHERE patient.patienthealthsystemstayid IN (SELECT patient.patienthealthsystemstayid FROM patient WHERE patient.uniquepid = '016-30273')) AND STRFTIME('%y-%m', medication.drugstarttime) = '2103-09' ORDER BY medication.drugstarttime LIMIT 1