Nava, Elena
Croci, Emanuela
Turati, Chiara
Article History
Received: 4 January 2019
Accepted: 7 May 2019
First Online: 4 June 2019
Change Date: 29 August 2019
Change Type: Correction
Change Details: An amendment to this paper has been published and can be accessed via a link at the top of the paper.
Competing interests
: The authors declare no competing interests.
: The Ethical Committee of the University of Milan-Bicocca (Italy) approved the studies presented in the manuscript. Informed consent was obtained by the legal guardians of all infants and toddlers before they took part in the studies.