1. Laboratory of Molecular Microbiology and Antimicrobials, Department of Pathology and Experimental Therapeutics, Faculty of Medicine, University of Barcelona, Barcelona, Spain.
2. Dental School, Research Centre in Dental Sciences (CICO), Universidad de La Frontera, Temuco, Chile.
3. Cuerpo de Sanidad Militar, Ejército del Aire de España, Zaragoza, España.
4. Department of Dentistry, Faculty of Medicine, University of Barcelona, Barcelona, Spain.