Simakov, S. K.
Kouchi, A.
Mel’nik, N.N.
Scribano, V.
Kimura, Y.
Hama, T.
Suzuki, N.
Saito, H.
Yoshizawa, T.
Article History
Received: 30 December 2014
Accepted: 28 April 2015
First Online: 1 June 2015
Competing interests
: The authors declare no competing financial interests.