| Jatinder Patti | Data acquisition, interpretation of data, and drafting the article |
| Johanna Helenius | Data acquisition, interpretation of data, critical revision of the manuscript for important intellectual content |
| Ajit S. Puri | Interpretation of data, critical revision of the manuscript for important intellectual content |
| Nils Henninger | Study concept and design, data acquisition, statistical analysis, interpretation of data, and drafting the article |
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