The Blood Groups in Relation to Peptic Ulceration and Carcinoma of Colon, Rectum, Breast, and BronchusBr Med J 1954; 2 doi: http://dx.doi.org/10.1136/bmj.2.4883.315 (Published 07 August 1954) Cite this as: Br Med J 1954;2:315
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