1. Internal validity;Morgan;J Am Acad Child Adolesc Psychiatry,2000
2. Science mapping analysis characterizes 235 biases in biomedical research;Chavalarias;J Clin Epidemiol,2010
3. RoB 2: a revised tool for assessing risk of bias in randomised trials;Sterne;BMJ,2019
4. Spencer EA, Heneghan C. Catalogue of biases; 2018 [accessed 26 October 2021 at https://catalogofbias.org/].
5. Revised Cochrane risk-of-bias tool for randomized trials;Higgins,2019