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Article History

Received: 18 January 2018

Accepted: 8 April 2018

First Online: 16 April 2018

Ethics approval and consent to participate

: Tuscany (Italy) approved the present study with the Notification number 1225 - December 21, 2009. The Local Institutional Ethics Committee of the coordinating center (Comitato Etico di Area Vasta Nord “CEAVNO” per la Sperimentazione Clinica, Azienda Ospedaliero-Universitaria Pisana) approved the study according to the legal requirements concerning observational studies (Study number 3055/2010, Protocol number 45288 - August 6, 2014). For this type of study patient’s consent to participate is not requested. In particular, the study protocol reported:“On the basis of the total amount of emergency department admissions per month, the commitment necessary for the collection of informed consent in Anna Meyer Children’s University Hospital for the study period is logistically incompatible with the conduct of the present study”, […]“In the light of the specific activities of the emergency department, generally of urgent nature, the collection of informed consent is not compatible with the possibility of guaranteeing the conduct of normal clinical practice”. The Local Institutional Ethics Committee of the coordinating center did not request patient’s consent to participate to the present study.

: The authors declare that they have no competing interests.

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