4CYV:
reference: Receptor binding by H10 influenza viruses., Vachieri SG, Xiong X, Collins PJ, Walker PA, Martin SR, Haire LF, Zhang Y, McCauley JW, Gamblin SJ, Skehel JJ, Nature. 2014 May 28. doi: 10.1038/nature13443. PMID: 24870229

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