Tchernev, G., Oliveira, N., Kandathil, L.J., Patterson, J.W., Cardoso, J.C., Kordeva, S., Pidakev, I. and Stavrov, K. 2022. 4th National Congress of the Bulgarian Society for Dermatologic Surgery, Sofia, 12th March 2022 with main topics: one step melanoma surgery and drug induced melanoma. Dermatology Reports. 14, 4 (Nov. 2022). DOI:https://doi.org/10.4081/dr.2022.9542.