| Study | Date trial author contacted (first) | Date trial author provided data (latest) |
Data trial author provided (short summary) |
| Chin 2008 | 16 July 2015 | 17 August 2017 | Method: randomization sequence/ Data: the number of participants who died due to any cause and underwent repeated cryotherapy within 6 months after initial cryotherapy. |
| Donnelly 2010 | 16 July 2015 | 17 August 2017 | Available data were not provided. |
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