At least a 3.5 GPA in graduate studies or demonstrated superiority in graduate work, and at least a B in each of the mandatory core courses, a positive recommendation by the Health Services Department, approval by the doctoral admissions committee and the department chair, completion of the M.S. in Health Services or an appropriately related field is preferred. Submission of a writing sample, preferably a master's thesis or equivalent, is required. Screening examinations may be required by the department.