4J1A:
reference: Interaction of Anticancer Ruthenium Compounds with Proteins: High-Resolution X-ray Structures and Raman Microscopy Studies of the Adduct between Hen Egg White Lysozyme and AziRu., Vergara A, D'Errico G, Montesarchio D, Mangiapia G, Paduano L, Merlino A, Inorg Chem. 2013 Mar 22. PMID: 23517183

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