Guidelines on the use of photodynamic therapy for non-melanoma skin cancer: an international consensus (Braathen et al. J Am Acad Dermatol 2007;56:125-43)
Guidelines for management of Bowen's disease: 2006 update (British Association of Dermatologists Therapy Guidelines and Audit Subcommittee. Brit J Dermatol 2007;156:11-21)
Methyl aminolaevulinate–photodynamic therapy: a review of clinical trials in the treatment of actinic keratoses and nonmelanoma skin cancer (Lehmann. Br J Dermatol 2007 May;156(5):793-801)