Comment on

• Photodynamic therapy with aminolevulinic acid topical solution and visible blue light in the treatment of multiple actinic keratoses of the face and scalp: investigator-blinded, phase 3, multicenter trials.

  Piacquadio DJ, Chen DM, Farber HF, Fowler JF Jr, Glazer SD, Goodman JJ, Hruza LL, Jeffes EW, Ling MR, Phillips TJ, Rallis TM, Scher RK, Taylor CR, Weinstein GD. Piacquadio DJ, et al. Arch Dermatol. 2004 Jan;140(1):41-6. doi: 10.1001/archderm.140.1.41. Arch Dermatol. 2004. PMID: 14732659 Clinical Trial.