1. A survey of office visits for actinic keratosis as reported by NAMCS, 1990-1999. National Ambulatory Medical Care Survey;Gupta;Cutis,2002
2. Frequency and cost of actinic keratosis treatment;Warino;Dermatol Surg,2006
3. Centers for Medicare and Medicaid Services website. Medicare fee-for service provider utilization & payment data part D prescriber public use file: a methodological overview. Available at: https://www.cms.gov/Research-Statistics-Data-and-Systems/Statistics-Trends-and-Reports/Medicare-Provider-Charge-Data/Downloads/Prescriber_Methods.pdf. Accessed September 18, 2017.
4. Bureau of Labor Statistics website. Consumer price index calculator. Available at: https://data.bls.gov/cgi-bin/cpicalc.pl. Accessed December 27, 2016.
5. Evaluation of the effectiveness of imiquimod and 5-fluorouracil for the treatment of actinic keratosis: critical review and meta-analysis of efficacy studies;Gupta;J Cutan Med Surg,2005