As of 1 April 2026, the PSJD database will become an archive and will no longer accept new data. Current publications from Polish scientific journals are available through the Library of Science: https://bibliotekanauki.pl
K. Madalinski, Zaklad Immunologii Klinicznej, Instytut ?Pomnika Centrum Zdrowia Dziecka?, Al. Dzieci Polskich 20, 04-730 Warszawa, Poland, e-mail: Kmadalinski@wp.pl