1. Department of Tumor Pathology and Pathomorphology, Faculty of Health Sciences, Nicolaus Copernicus University Collegium Medicum in Bydgoszcz, Oncology Centre - Prof. Franciszek Łukaszczyk Memorial Hospital, Bydgoszcz 85-796, Poland
2. Department of Cancer Biology, BLSB 524, Thomas Jefferson University, Philadelphia, PA 19107, USA
3. Winship Cancer Institute, Emory University Hospital, Atlanta, GA 30322, USA
4. Pancreas, Liver, and Cancer Surgery, Piedmont Healthcare, Atlanta, GA 30309, USA
5. Department of Dermatology, UConn Health, Farmington, CT 06030, USA
6. Department of Dermatology, Comprehensive Cancer Center, Cancer Chemoprevention Program, University of Alabama at Birmingham, Birmingham, AL 35294, USA
7. Department of Pathology and Laboratory Medicine, Albany Medical College MC-81, Albany, NY 12208, USA