| Date | Event | Description |
|---|---|---|
| 1 April 2020 | New citation required but conclusions have not changed | No new data have been added to this review and thus our conclusions have not changed. |
| 1 April 2020 | New search has been performed | A search of the Cochrane Cystic Fibrosis and Genetic Disorders Review Group's Inborn Errors of Metabolism Register identified a single reference potentially eligible for inclusion in this review. This was a full paper to a previously identified abstract that was listed as an excluded study (Knerr 2015). |