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Contributors RP and CP designed the study. RP collected the data, contributed to the data analysis and interpretation and wrote the first draft of the article. AB and DP collected the data and contributed to its analysis. CP contributed to data interpretation and wrote the first draft of the article. MP was responsible for the data analysis and interpretation, and wrote the final draft of the article. CP and MP are guarantors for the study. All authors had full access to all of the data (including statistical reports and tables) in the study and can take responsibility for the integrity of the data and the accuracy of the data analysis.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Patient consent for publication Not required.
Ethics approval This study was supported by Institutional Ethical Committee ‘‘Mater Domini” Hospital of Catanzaro, Italy. Number of the approval 45 (February 22, 2018).
Provenance and peer review Not commissioned; externally peer reviewed.
Data availability statement All data relevant to the study are included in the article or uploaded as supplementary information.
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Footnotes
Contributors RP and CP designed the study. RP collected the data, contributed to the data analysis and interpretation and wrote the first draft of the article. AB and DP collected the data and contributed to its analysis. CP contributed to data interpretation and wrote the first draft of the article. MP was responsible for the data analysis and interpretation, and wrote the final draft of the article. CP and MP are guarantors for the study. All authors had full access to all of the data (including statistical reports and tables) in the study and can take responsibility for the integrity of the data and the accuracy of the data analysis.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Patient consent for publication Not required.
Ethics approval This study was supported by Institutional Ethical Committee ‘‘Mater Domini” Hospital of Catanzaro, Italy. Number of the approval 45 (February 22, 2018).
Provenance and peer review Not commissioned; externally peer reviewed.
Data availability statement All data relevant to the study are included in the article or uploaded as supplementary information.
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