1First Department of Internal Medicine, Laikon General Hospital, National and Kapodistrian University of Athens Athens, Greece
2Department of Microbiology, Medical School, University of Athens, Greece
3Department of Clinical Hematology, G. Gennimatas District General Hospital, Athens, Greece
*Corresponding Author:
Panagiotis Diamantopoulos, First Department of Internal Medicine, Laikon General Hospital, National and Kapodistrian University of Athens Athens, Greece, Tel: 0030 213 2061985 Email: