Abstract
IN a search for a convenient source of substances with blood group A specificity, dried hog stomach powder (Boots 'Pepsac') proved suitable. The usual sources, namely, dry gastric mucus and saliva from human secretors, were not readily available.
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References
Morgan, W. T. J., and King, H. K., Biochem. J., 37, 640 (1943).
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Witebsky, E., and Klendshoj, N. C., J. Exper. Med., 73, 655 (1941).
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FOLAN, M. Blood Group A Substances in Commercial Hog Stomach Powder. Nature 157, 231 (1946). https://doi.org/10.1038/157231a0
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DOI: https://doi.org/10.1038/157231a0
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