1. Sarcomas involving the skin and superficial tissues;Andrews,1991
2. Malignant fibrous histiocytoma of the head and neck;Barnes,1988
3. Possible precursors to epidermal malignancies;Callen,1991
4. Tumours and tumour-like conditions of the skin;Kyriakos,1990
5. Tumors of the soft tissue;Lattes,1982