Coronado-Ruiz, Carolina
Avendaño, Roberto
Escudero-Leyva, Efraín
Conejo-Barboza, Geraldine
Chaverri, Priscila
Chavarría, Max
Article History
Received: 25 August 2017
Accepted: 12 April 2018
First Online: 10 May 2018
Competing Interests
: The authors declare no competing interests.