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Quasi-experimental study designs series-paper 4: uses and value.
Bärnighausen T, Tugwell P, Røttingen JA, Shemilt I, Rockers P, Geldsetzer P, Lavis J, Grimshaw J, Daniels K, Brown A, Bor J, Tanner J, Rashidian A, Barreto M, Vollmer S, Atun R. Bärnighausen T, et al. Among authors: tanner j. J Clin Epidemiol. 2017 Sep;89:21-29. doi: 10.1016/j.jclinepi.2017.03.012. Epub 2017 Mar 30. J Clin Epidemiol. 2017. PMID: 28365303 Free article.