Dermatology Ward, Military Medical Academy, Sofia, Bulgaria
Boyana Beshanska-Pedersen, MD
Correspondence to: Boyana Beshanska-Pedersen, MD, Military Medical Academy, St. Georgi Sofiyski Str. 3, Sofia, Bulgaria.; Dermatology Ward, Military Medical Academy, Sofia, Bulgaria
Elena Obreshkova, MD, PhD
Dermatology Ward, Military Medical Academy, Sofia, Bulgaria