Kontakt email: onkolog@ostaszewski.me Github: https://github.com/ostaszewskik LinkedIn: https://www.linkedin.com/in/krzysztof-ostaszewski-7184b0280/ Researchgate: https://www.researchgate.net/profile/Krzysztof-Ostaszewski Orcid: https://orcid.org/my-orcid?orcid=0000-0002-9679-0523