1. Anthony PP, Ishak KG, Nayak NC, Poulsen HE, Scheuer PJ, Sobin LH (1978) The morphology of cirrhosis: Recommendations on definition, nomenclature, and classification by a working group sponsored by the World Health Organization. J Clin Pathol 31:395–414
2. Azzopardi JG (1979) Problems in breast pathology. Saunders, Philadelphia Toronto, p 167
3. Bloom HJG, Richardson WW (1957) Histologic grading and prognosis in breast cancer: A study of 1409 cases of which 359 have been followed for 15 years. Br J Cancer 11:359–377
4. Bohrod MG (1971) What is a pathologic diagnosis? Pathol Annu 6:197–208
5. Broders AC (1932) Practical points on the microscopic grading of carcinoma. NY State J Med 32:667–671