6WTT:
reference: Boceprevir, GC-376, and calpain inhibitors II, XII inhibit SARS-CoV-2 viral replication by targeting the viral main protease., Ma C, Sacco MD, Hurst B, Townsend JA, Hu Y, Szeto T, Zhang X, Tarbet B, Marty MT, Chen Y, Wang J, Cell Res. 2020 Jun 15. pii: 10.1038/s41422-020-0356-z. doi:, 10.1038/s41422-020-0356-z. PMID: 32541865

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