instruction: count the number of patients who have been on cl flush: ij r intake in a year before.
response: SELECT COUNT(DISTINCT patient.uniquepid) FROM patient WHERE patient.patientunitstayid IN (SELECT intakeoutput.patientunitstayid FROM intakeoutput WHERE intakeoutput.celllabel = 'cl flush: ij r' AND intakeoutput.cellpath LIKE '%input%' AND DATETIME(intakeoutput.intakeoutputtime, 'start of year') = DATETIME(CURRENT_TIME(), 'start of year', '-1 year'))