Oklahoma's Office of Juvenile Affairs says it's working to track down at least 191 patients treated by a Tulsa oral surgeon being investigated for unsanitary conditions at his clinics.
OJA spokeswoman Paula Christiansen told The Associated Press the agency went back to 1995 records to generate the list that it provided to the Oklahoma Health Care Authority.
Christiansen says the patients saw Harrington at his clinic and were housed at the L.E. Rader Center in Sand Springs, which was the only maximum-security juvenile facility in the state. The center closed in 2011.
Authorities in March urged Harrington's 7,000 patients to be tested after finding unsanitary conditions at his two Tulsa-area clinics.
Officials at several health agencies could not immediately confirm whether the juveniles were included in the master patient list.