Marthaler, Adele G.
Adachi, Kenjiro
Tiemann, Ulf
Wu, Guangming
Sabour, Davood
Velychko, Sergiy
Kleiter, Ingo
Schöler, Hans R.
Tapia, Natalia
Article History
Received: 10 September 2015
Accepted: 11 December 2015
First Online: 14 January 2016
Competing interests
: The authors declare no competing financial interests.