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Fong, Lucas Chun Wah; Ford, Thomas J; Da Costa, Bruno R.; Jüni, Peter; Berry, Colin (2020). Bias and Loss to Follow-Up in Cardiovascular Randomized Trials: A Systematic Review [and Meta-Analysis]. Journal of the American Heart Association, 9(14), e015361. American Heart Association 10.1161/JAHA.119.015361