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OD values of each group at 570 nm. Fresh anticoagulated human blood was allowed to make contact with the Mg-Zn-Sr alloy extract (experimental group) and compared with the positive control group (0.64% phenol) and negative control group (normal saline). Six parallel samples were prepared for each group, and the absorbance of each sample was measured at 570 nm with an ultraviolet-visible spectrophotometer.
