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. 2021 Jan 19;19:17. doi: 10.1186/s12957-021-02126-4

Table 2.

NOS score sheet

Selection Comparability Outcome
T eruyuki Sakaguchi 1998 ★★★☆ ☆☆ ★★☆
Jang Kyu Choi 2015 ★★★☆ ☆☆ ★★☆
Qin Huang 2015 ★★★☆ ☆☆ ★★★
Jun Chul Park 2010 ★★★☆ ☆☆ ★★☆
Laurence Bedin da COSTA 2016 ★★★☆ ☆☆ ★★★
Fabio Pacelli 2001 ★★★☆ ☆☆ ★★☆
Pompiliu Piso 2000 ★★★☆ ☆☆ ★★☆
Chong Li 2005 ★★★☆ ★☆ ★★☆
Wenhua Zhan 2002 ★★★☆ ☆☆ ★★★
Jianshan Hong 2005 ★★★☆ ☆☆ ★★☆