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Alignments of NS7a/7b genes of SADS-CoV/GDWT-P7, -P18, -P48 and -P83. A, the green solid boxes indicate the location of a 58 bp-deletion in P48 and P83 strains. B, the light blue regions indicate amino acid changes of NS7a proteins of P48 and P83 strains. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)
