Immunotherapy. 2012;4(9):939-945. The percentage of patients achieving complete clearance of their AKs in the 5-FU group was 19, 28.2 and 52.6% in the 1-, 2- and 4-week treatment groups, respectively.

Immunotherapy. 2012;4(9):939-945. Potential reasons for the observed improvement in outcomes in vehicle groups include the natural regression of AK lesions, variation in investigator-determined ...