1. Department of Analytical ChemistryMedical University of Bialystok 15‐089 Bialystok Poland
2. Mass Spectrometry Center, QOPNA, Department of ChemistryUniversity of Aveiro 3810‐193 Aveiro Portugal
3. Dermatological Specialized Center “DERMAL” NZOZ in Bialystok 15‐453 Bialystok Poland