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Prospective studies
| Author | Year | Patients (n) |
|---|---|---|
| Jung (16) | 2000 | 19 |
| Lopera (11) | 2001 | 16 |
| Pabon (12) | 2001 | 29 |
| J.H. Kim (13) | 2001 | 29 |
| Park (14) | 2001 | 24 |
| Jung (17) | 2002 | 39 |
| Lee(21) | 2003 | 17 |
| Tang (22) | 2003 | 21 |
| Nassif (23) | 2003 | 63 |
| Holt (26) | 2004 | 28 |
| Jeong (27) | 2004 | 25 |
| Johnsson (5) | 2004 | 21 |
| Hayashi (47) | 2005 | 31 |
| Yoon (35) | 2006 | 82 |
| Espinel (36) | 2006 | 24 |
| Song (42) | 2007 | 20 |
| Mutignani(43) | 2007 | 64 |
| J.H Kim (41) | 2007 | 213 |
| Lowe(44) | 2007 | 87 |
| Maetani (45) | 2007 | 37 |
