“…Clagett (1960) and Shinton (1961) have shown a relationship also to age, sex, location, the clinical course of the disease including the development of metastases, resectability, prognosis and treatment. Differences in survival rates following surgical resection of various histological types has also been reported by Kirklin, McDonald, Clagett, Moersch and Gage (1955), Overholt and Bougas (1956), Gifford and Waddington (1957), Nicholson, Fox and Bryce (1957), Burford, Carter, Ferguson and Spjut (1958) and by Collins (1958). Treatment may therefore be influenced by the histological type of the tumour so that a standard classification is highly desirable.…”