3DA9:
reference: Compounds binding to the S2-S3 pockets of thrombin., Nilsson M, Hamalainen M, Ivarsson M, Gottfries J, Xue Y, Hansson S, Isaksson R, Fex T, J Med Chem. 2009 May 14;52(9):2708-15. PMID: 19371038

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