Langabeer, Stephen E. http://orcid.org/0000-0002-6119-158X
Article History
Received: 19 March 2019
Accepted: 3 April 2019
First Online: 11 April 2019
Compliance with ethical standards
: This study was performed in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki declaration and its later amendments. Informed consent was obtained from participants at the referring centres.
: The author declares that he has no conflicts of interest.