Table 1.

Type of study, level of evidence, modified Coleman methodology score, potential high risk of bias, and conflicts of interest amongst authors.

Authors	Type of study	Level of evidence	Modified Coleman score	Possible high risk of bias	Conflict of interest
Ozgur et al.24	retrospective	IV	44	Selection, detection and performance	yes
Lanzone et al.25	prospective	IV	60	Selection, detection and performance	no
Lorenzetti et al.26	retrospective	IV	50	Selection, detection and performance	yes
Garofalo et al.27	retrospective	IV	52	Selection, detection and performance	yes
Jones et al. 28	retrospective	IV	44	Selection, detection and performance	yes
Werner et al. 5	prospective	IV	52	Selection, detection and performance	no
Ernstbrunner et al.29	prospective	IV	52	Selection, detection and performance	yes
Lopiz et al.30	retrospective	IV	46	Selection, detection and performance	no
Boileau et al. 13	retrospective	IV	50	Selection, detection and performance	yes
Tashjian et al.31	retrospective	IV	47	Selection, detection and performance	yes
Gupta et al.32	retrospective	IV	40	Selection, detection and performance	yes
Mahylis et al.33	retrospective	III	37	Selection, detection and performance	no
Wagner et al.6	prospective	III	48	Selection, detection and performance	yes