3Raulin C,Greve B,Hammes S.The combined continuous-wave/pulsed carbon dioxide laser for treatment of pyogenic granuloma[J].Arch Dermatol,2002,138(1):33-37.
4Ghodsi SZ,Raziei M,Taheri A,et al.Comparison of cryotherapy and curettage for the treatment of pyogenic granuloma:a randomized trial[J].Br J Dermatol,2006,154(4):671-675.
5Mirshams M,Daneshpazhooh M,Mirshekari A,et al.Cryotherapy in the treatment of pyogenic granuloma[J].J Eur Acad Dermatol Venereol,2006,20(7):788-790.