1Wilson RG.Office application of new acne grading system[].Cutis.1980
2Witkowski JA,Parish LC,Guin JD.Acne grading methods letter[].Archives of Dermatology.1980
3Pochi PE,Shalita AR,Strauss JS,et al.Report of the consensus conference on acne classification[].Journal of the American Academy of Dermatology.1991
4Doshi A,Zaheer A,Stiller MJ.A comparison of current acne grading systems andproposal of a novel system[].International Journal of Dermatology.1997
5Allen BS,Smith JG.Various parameters for grading acne vulgaris[].Archives of Dermatology.1982
6Gibson JR,Harvey SG,Barth J,et al.Assessing inflammatory acne vulgaris: correlation between clinical and photographic methods[].Br J Dermatol.1984
7Burke BM,Cunliffe WJ.The assessnent of acne vulgaris the Leeds technique[].Br J Dermatol.1984
8Witkowski JA,Simons HM.Objective evaluation of demethylchlortetracycline hydrochloride in the treatment of acne[].The Journal of The American Medical Association.1966