Oakdale campus authorities may provide for treatment of such patients as they deem advisable and for which facilities and services are available. Except for patients admitted who are patients referred from the university hospitals, the Oakdale campus shall collect from the patients or a person liable for such support, such reasonable charges for care, service and treatment as may be fixed by the state board of regents. Earnings shall be deposited with the treasurer of the state university of Iowa for the use and benefit of the Oakdale campus and to supplement any other sources of income. Patient treatment and care on the Oakdale campus shall be provided by the faculty of the health science colleges of the state university of Iowa, staff of the university hospital, and professional and other staff as may be employed by the Oakdale campus.