Flag for Recurrence date not populated:Prid:Episode^frst:Cancer.XXX:Nom
flag for recurrence date not populated:prid:episode^frst:cancer.xxx:nom
Flag for Recurrence date not populated:Presence or Identity:Episode^First value observed during an interval:Cancer.Not specified:Nominal
flag for recurrence date not populated:presence or identity:episode^first value observed during an interval:cancer.not specified:nominal