4Hongeharu W, Taylor C R, Chang Y, et al. Topical ALA- photodynamic therapy for the treatment of acne vulgaris [ J ]. J Invest Dermatol, 2000,115 ( 2 ) : 183-192.
5Ashkenazi H, Malik Z, Harsh Y, et al. Eradication of propionibacterium acnes by its endogenic porphyrins after illumination with high intensity blue light [ J ]. FEMS Im- munol Med Microbiol, 2003,35 ( 1 ) : 17-24.
