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Introduction and background components of vLab. (A) Screenshots showing learning objectives, general instructions, LDH reaction and biomedical importance. (B) vLAb simulation showing how to prepare reagents. Students read instructions and watch a video before preparing two key reagents. (C) Screenshot of another simulation where students get help to set up the assay in the microplate. (D) Using instructions, students pipette reagents into the 24-well microplate.
