This assignment tasks you with critically appraising a research article examining the effectiveness of endoscopic versus open vein-graft harvesting techniques in coronary artery bypass grafting (CABG) surgery. You will need to assess the study's design, methodology, data analysis, and conclusions, drawing upon concepts from evidence-based practice in nursing and research methodologies. The assignment requires you to demonstrate your understanding of critical appraisal tools for evaluating quantitative studies, specifically focusing on randomized controlled trials.