Assume that you work for the US Department of Health and Human Services (DHHS). DHHS is considering ways to increase the number of dentists participating in the National Health Service Corps loan repayment assistance program. Through this program, healthcare workers receive loan repayment assistance in exchange for practicing in areas that the US government designates as Health Professional Shortage Areas. How could a health workforce model help guide decision making on this potential change to the loan repayment program? What kinds of supply data might you gather for your model of dentist supply? In this case, at what geographic level would you model dentist supply?