“…Goldfeder and Fershing (1937) cited five series in the literature: Hoche and Moritsch (1926) found a slight increase in A and AB in patients with malignant disease; Hirschfeld and Hittmair (1926) did not demonstrate any variation from the normal range in 150 cancer patients; Einaudi (1927) showed no variation from normal in his series; Thomsen (1931) concluded that there were no definite differences from normal in 1,200 cancer cases; Matousek (1935), from a study of 200 women with malignant tumours, claimed an excess of group 0 in carcinoma of the breast. Goldfeder However, in the same month in which the report of Aird et al (1953) appeared, Mayo and Ferguson (1953) produced their results of the ABO groups in various gastro-intestinal diseases, which included 935 cases of carcinoma, and concluded that there was no significant relationship between the disease studied and the groups.…”