4Suntharalingam M, Rudoltz M S, Mendenhall W M, et al. Radiotherapy for Merkel cell carcinoma of the skin of the head and neck [ J ]. Head Neck, 1995,17 (2) :96-101.
5Wynne C J, Kearsley J H. Merkel cell tumor. A chemosensitive skin cancer[ J]. Cancer, 1988,62( 1 ) :28-31.
6Eftekhari F, Wallace S, Silva E G, et al. Merkel cell carcinoma of the skin : imaging and clinical features in 93 cases [ J ]. Br J Radiol, 1996,69 ( 819 ) :226-233.
7OConnor W J, Brodland D G . Merkel cell carcinoma[J]. Dermatol Surg, 1996,22 ( 3 ) :262-267.