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Heterogeneity in outcome selection, definition and measurement in studies assessing the treatment of cryptoglandular anal fistula: findings from a systematic review.
Machielsen AJHM, Iqbal N, Kimman ML, Sahnan K, Adegbola SO, Kane G, Woodcock R, Kleijnen J, Grossi U, Breukink SO, Tozer PJ. Machielsen AJHM, et al. Tech Coloproctol. 2021 Jul;25(7):761-830. doi: 10.1007/s10151-021-02452-5. Epub 2021 May 8. Tech Coloproctol. 2021. PMID: 33963945 Free PMC article. Review.