Proportion of patients achieving 100-percent clearance in the original study and at the one-year post-treatment follow up. Adapted with permission from Journal of Drugs in Dermatology. Copyright 2009. Nelson C, Rigel D, Smith S, Swanson M, Wolf J. Phase IV, open-label assessment of the treatment of actinic keratosis with 3.0% diclofenac sodium topical gel (Solaraze™). J Drugs Dermatol. 2004;3(4):401–407.