1. Unitat de Microbiologia
2. Dr. B. R. Ambedkar Centre for Biomedical Research, University of Delhi, Delhi
3. Department of Pathology, Deen Dayal Upadhayaya Hospital, New Delhi, India
4. Unitat d'Anatomia Patològica, Facultat de Medicina, Universitat Rovira i Virgili, Reus, Spain