1 Second Department of Dermatology and Allergy Unit D Kalogeromitros, Athens University Medical School, Attikon University General Hospital, Athens, Greece. Electronic address: epapad@med.uoa.gr.
2 Second Department of Pathology, Athens University Medical School, Attikon University General Hospital, Athens, Greece.
3 Department of Clinical Biochemistry, Athens University Medical School, Attikon University General Hospital, Athens, Greece.
4 Second Department of Dermatology and Allergy Unit D Kalogeromitros, Athens University Medical School, Attikon University General Hospital, Athens, Greece.