Jorge Luis Arellanez Hernández, University of Veracruz, Mexico

Enrique Barra Almagiá, University of Concepcion, Chile

Jorge Grau Abalo, National Institute of Radiology and Oncology, Havana, Cuba

María del Socorro Herrera Meza, University of Veracruz, Mexico

Ana Delia López Suárez, University of Veracruz, Mexico

Rosa Martha Meda Lara, University of Guadalajara, Mexico

Bernardo Moreno Jiménez, Autonomous University of Madrid, Spain

María Erika Ortega Herrera, University of Veracruz, Mexico

Stefano Vinaccia Alpi, University of Sinú, Colombia