Text and Data Mining valid from 2018-03-02
Received: 29 August 2017
Revised: 22 February 2018
Accepted: 23 February 2018
First Online: 2 March 2018
Compliance with ethical standards
: There are no conflicts of interest to disclose.
: All applicable international, national and/or institutional guidelines for the care and use of animals were followed. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from the kennel owner for the use of resident dogs in this study. Experimenters provided informed consent for the use of their voices.