Efficacy of combination of Holmium laser and photodynamic therapy for the treatment of   refractory basal cell carcinoma and squamous cell carcinoma of head and face
LIU Shengxiu, SHEN Songke, CHEN Jing, XING Linsheng.
China Journal of Leprosy and Skin Diseases . 2017, (8): 457 -460 .