The SPCh Editorial Board ensures compliance with the privacy policy and protects the personal data of cooperating authors. Entrusted data are used solely for the purposes of the publishing process. Detailed information about personal data protection policy in force at the Cardinal Stefan Wyszynski University in Warsaw is included in the information clause available on the website. Any breach of personal data protection can be reported via the UKSW. The administrator has appointed a Data Protection Officer at the Cardinal Stefan Wyszyński University in Warsaw (DPO), who can be contacted at the phone number +48 22 5619034, e-mail: iod@uksw.edu.pl.