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  1. Article

    Dr. H. J. Hansen and the Copenhagen Museum of Zoology

    I BEG permission to acknowledge the receipt of the open letter sent me through your Journal of March 10, by the leading zoologists of Great Britain and Ireland, regarding my resignation from the Copenhagen Mus...

    H. J. HANSEN in Nature (1910)

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    Article

    Demonstration of Carcinoembryonic Antigen in Normal Human Plasma

    CARCINOEMBRYONIC antigen (CEA) was first reported by Gold and Freedman as a tumour-specific antigen found in tissue extract of adenocarcinoma of human colon and not present in normal colonic tissue1,2; also, CEA ...

    T. M. CHU, G. REYNOSO, H. J. HANSEN in Nature (1972)