1. Intercollegiate Faculty of Biotechnology of University of Gdańsk and Medical University of Gdańsk, University of Gdańsk, 80-307 Gdańsk, Poland
2. Faculty of Biochemistry and Molecular Medicine, University of Oulu, 90220 Oulu, Finland
3. Laboratory of Mass Spectrometry-Core Facility Laboratories, Intercollegiate Faculty of Biotechnology University of Gdańsk and Medical University of Gdańsk, University of Gdańsk, 80-309 Gdańsk, Poland