Pfender, Matthias http://orcid.org/0000-0003-3934-8306
Aslam, Nabeel
Sumiya, Hitoshi
Onoda, Shinobu
Neumann, Philipp http://orcid.org/0000-0003-2146-0412
Isoya, Junichi http://orcid.org/0000-0002-9598-625X
Meriles, Carlos A.
Wrachtrup, Jörg
Article History
Received: 1 March 2017
Accepted: 9 August 2017
First Online: 10 October 2017
Competing interests
: The authors declare no competing financial interests.