Dr. Charalampos D. Moschopoulos is currently a cPhD at the 4th Department of Internal Medicine, University General Hospital "Attikon", National and Kapodistrian University of Athens, Athens, Greece. He serves as a Guest Editor of Biomedicines and a Guest Editor Assistant of Antibiotics. His research topics mainly include clinical medicine, internal medicine, HIV, clinical epidemiology, observational studies, clinical trials, viral infections, and immunology.