4Callen JP,Hyla JF,Bole GG,et al.The Relationship of Dermatmyositis and Polymyositi to Internal Malignancy.Arch Dermatol,1980,116:295-298.
5Cox NH,Lawrence CM,Largtry JAA.Dermatomyositi-Disease Associaton and an Evaluaton of Screening Investigation for Malignancy.Arch Dermatol,1990,126:61-65.