6N5E:
reference: Influenza Antigen Engineering Focuses Immune Responses to a Subdominant but Broadly Protective Viral Epitope., Bajic G, Maron MJ, Adachi Y, Onodera T, McCarthy KR, McGee CE, Sempowski GD, Takahashi Y, Kelsoe G, Kuraoka M, Schmidt AG, Cell Host Microbe. 2019 May 14. pii: S1931-3128(19)30206-9. doi:, 10.1016/j.chom.2019.04.003. PMID: 31104946

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