TABLE 5.

Risk of bias assessments of Case Series based on Joanna Briggs Institute's Critical Appraisal Checklist

Study	Were there clear criteria for inclusion in the case series?	Was the condition measured in a standard, reliable way for all participants included in the case series?	Were valid methods used for identification of the condition for all participants included in the case series?	Did the case series have consecutive inclusion of participants?	Did the case series have complete inclusion of participants?	Was there clear reporting of the demographics of the participants in the study?	Was there clear reporting of clinical information of the participants?	Were the outcomes of follow‐up results of cases clearly reported?	Was there clear reporting of the presenting site(s)/clinic (s) demographic information?	Was statistical analysis appropriate?	Overall appraisal
An et al. (2019)	Yes	Yes	Yes	Unclear	Yes	Yes	Yes	Yes	Yes*	Yes	Included
Payer et al. (2010)	Yes	Yes	Yes	Unclear	Yes	Yes	Yes	Yes	Yes	Yes	Included
Si et al. (2016)	Yes	Yes	Yes	Yes*	Unclear	Yes	Yes	Yes	Yes	Yes	Included