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Partanen, J., Campbell, R.D. Restriction fragment analysis of non-deleted complementC4 null genes suggests point mutations inC4A null alleles, but gene conversions inC4B null alleles. Immunogenetics 30, 520–523 (1989). https://doi.org/10.1007/BF02421186
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DOI: https://doi.org/10.1007/BF02421186