9Kuwano Y, lshizaki K, Watanabe R, et al. Effeacy of diagnostic uhrasonography of lipomas,epidermal cysts,and ganglions. Arch Dermatol, 2009, 145(7): 761-764.
10Chiou HJ, Chou YH, Chiu SY, el al. Differentiation of benign and malignant superficial soft-tissue maases using gray scale and color Doppler ultrasonography. J Chin Med Assoc, 2009, 72(6): 307-315.