Bilan, Regina
Ametzazurra, Amagoia
Brazhnik, Kristina
Escorza, Sergio
Fernández, David
Uríbarri, María
Nabiev, Igor
Sukhanova, Alyona
Article History
Received: 14 November 2016
Accepted: 13 February 2017
First Online: 16 March 2017
Competing interests
: The authors declare no competing financial interests.