Let's break down the information found in the Methods section.

1. **What tool was used for pathway enrichment analysis?**
   - STRING database online software.

2. **Was a tool version number provided?**
   -  not described.

3. **What gene set library was queried (eg: GO, KEGG, Reactome or other)**
   - STRING database.

4. **Was a background gene list defined for pathway enrichment analysis?**
   - not described.

5. **What statistical test was used for enrichment analysis?**
   - not described.

6. **Was false discovery rate correction used to control the number of false positives in the pathway enrichment analysis?**
   - not described.