Table 1.

Studies excluded based on full-text analysis and reasons for exclusion

First author (year of publication)	Reason for exclusion
Alzoman and Diab (2016) [28]	1
Ambrosini et al. (2005) [29]	2
Amid et al. (2017) [30]	3
Andersen et al. (2007) [31]	3
Badran et al. (2012) [32]	1
Bocher et al. (2019) [33]	3
Castro et al. (2019) [34]	3
Ciurescu et al. (2019) [35]	3
Derdilopoulou et al. (2007) [36]	3
Everett et al. (2017) [37]	3
Foroutan et al. (2013) [38]	3
Ge et al. (2017) [39]	2 and 3
Gianelli et al. (2012) [40]	3
Gomez et al. (2009) [41]	3
Harmouche et al. (2019) [42]	3
Jensen et al. (2010) [43]	1
Krohn-Dale et al. (2012) [44]	1
Lopes et al. (2008) [45]	2
Malali et al. (2012) [46]	2
Miyazaki et al. (2003) [47]	1
Moritz et al. (1997) [48]	1
Moritz et al. (1998) [49]	3
Noro Filho et al. (2012) [50]	3
Saglam et al. (2017) [51]	2
Soo et al. (2012) [52]	3
Yilmaz et al. (2002) [53]	3

1, number of subjects < 20; 2, follow-up time < 6 months; 3, study protocol does not match with stated focused question; 4, endpoints do not match with stated inclusion criteria; 5, no data at 6-month follow-up; 6, other reasons (e.g., follow-up time unknown); *no author response to inquiry e-mail for data clarification