Efficacy of Emotionally Focused Therapy among Spanish-speaking couples: study protocol of a randomized clinical trial in Argentina, Costa Rica, Guatemala, Mexico, and Spain oleh Martiño Rodríguez-Gonzalez, Shayne Anderson, Alfonso Osorio, Marie-France Lafontaine, Paul S. Greenman, María Calatrava, Dania Andrade, Ragan Lybbert, Pilar Martínez-Diaz, Patrick Steffen, Jokin de Irala, Jonathan Sandberg