Table 1 Included articles
Article | Patients no | Article type |
|---|---|---|
Barczynski et al. 2010 [3] | 400 | Randomized control trial |
Yang et al. 2009 [4] | 346 | Randomized control trial |
Pappalardo et al. 1998 [5] | 141 | Randomized control trial |
Delbridge et al. 1999 [6] | 3089 | Prospective |
Tezelman et al. 2009 [7] | 2906 | Retrospective |
Vaiman et al. 2008 [8] | 6072 | Retrospective |