3Goulden V, Stables GI, Cunliffe WJ. Prevalence of facial acne in adults[J]. Am Acad Dermatol,1999,41:577-580.
4Poli F, Dreno B, Verschoore M. An epidemicological study of acne in female adults: results of a survey conducted in France [J].Eur Acad Dermatol Venereol,2001,15:541-545.
5Yeung CK, Teo LH, Chang HH. Acommunity-based epidemicological study of acne vulgaris in Hong Kong adolescents [J].Acta Derm Venereol,2002,82:104-107.
6Dreno B, Khammari A, Orain N,et al. ECCA grading scale: an original validated acne scar grading scale for clinical practice in dermatology[J].Dermatology,2007,214:46-51.
7Dreno B,Bodokh l,Chivot M,et al. ECLA grading: an acne classification for everyday clinical practice [J].Ann Dermatol Ve ne re ol,1999,126:136-141.
8Jacob CI,Dover JS,Kaminer MS,et al. Acne scarring: A classification system and review of treatment options [J].Am Acad Dermatol,2001,7:109-117.
9Chajchir A, Benzaquen I. Carbon dioxide laser resurfacing with fast recovery[J].Aesth Plast Surg,2005,29:107-112.
10Trelles MA, Garcia L, Rigau J,et al. Pulsed and scanned carbon dioxide laser resurfacing 2 years after treatment: comparison by means of scaning electron microscopy [J].Plastic Reconst Surg, 2003,111 (6):2069-2078.