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This study was supported in part by a grant from the C.N.R. (grant CT 76.01563.04), Rome
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Girolami, A., Burul, A. & Cappellato, G. Further studies on factor IX antigen in hemophilia B. Blut 37, 215–217 (1978). https://doi.org/10.1007/BF00996723
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DOI: https://doi.org/10.1007/BF00996723