1. Ackerman AB (1982) Disagreements about Classification of malignant melanomas. Am J Dermatopathol 29: 705–726
2. Balch CM, Milton G (1985) Cutaneous melanoma. Lippincott Philadelphia
3. Balch CM, Soong S, Murad T, Ingalls A, Halpern N, Maddox W (1979). A multifactorial analysis of melanoma II. Prognostic factors in patients with Stage I melanoma. Surgery 86: 343–351
4. Balch CM, Wilkerson J, Murad T, Soong S, Ingalls A, Maddox W (1980) The prognostic significance of ulceration of cutaneous melanoma. Cancer 45: 3012–3017
5. Balch CM, Soong S, Shaw H, Milton G (1985) An analysis of prognostic factors in 4000 patients with cutaneous melanoma. In: Balch C, Milton G (eds) Cutaneous melanoma. Lippincott, Philadelphia,p321