| 1 | 2008-04-17 | None (earliest Version on record) |
| 2 | 2008-04-18 | Contacts/Locations and Study Status |
| 3 | 2008-05-12 | Recruitment Status, Study Status, Contacts/Locations and Eligibility |
| 4 | 2008-06-03 | Contacts/Locations and Study Status |
| 5 | 2008-07-10 | Contacts/Locations and Study Status |
| 6 | 2008-08-08 | Contacts/Locations and Study Status |
| 7 | 2008-09-10 | Contacts/Locations and Study Status |
| 8 | 2008-10-09 | Study Status and Contacts/Locations |
| 9 | 2008-12-09 | Study Status and Contacts/Locations |
| 10 | 2009-03-04 | Recruitment Status, Study Status and Contacts/Locations |
| 11 | 2009-03-06 | Study Status |
| 12 | 2009-04-30 | Study Status |
| 13 | 2010-01-14 | Study Status and Study Identification |
| 14 | 2010-06-29 | Recruitment Status and Study Status |
| 15 | 2010-06-30 | Recruitment Status, Study Status and Study Design |
| 16 | 2010-12-13 | Outcome Measures, Study Status, Results, Eligibility and Arms and Interventions |
