Article History
First Online: 30 June 2018
Compliance with Ethical Standards
: All procedures performed in this study were in accordance with the ethical standards of the institutional review board and with the 1964 Helsinki declaration and its later amendments. Data collection methods were approved by the institutional review board at the first author’s university. Informed consent was obtained from all individual participants included in the study.
: No authors of the study had any conflicts of interests or funding to disclose.