| Contributor name | The conception and design of the study | Acquisition of data | Analysis and interpretation of data | Drafting the article or revising it critically for important intellectual content | Final approval of the version to be submitted |
|---|---|---|---|---|---|
| Phung, N.N.T | X | X | X | X | X |
| Tran, T.T | X | X | X | X | X |
| Nguyen, H.T | X | X | X | ||
| Le, T.Q | X | X | X | ||
| Ngo, M.N.Q | X | X | X | ||
| Dang, D.Q | X | X | X | ||
| Tran, N.M | X | X | X | ||
| Nguyen, L.B.Y | X | X | X | ||
| Tran, T.M | X | X | X | ||
| Ngo, G.H.L | X | X | X | ||
| Vo, T.T.M | X | X | X |
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