Surgical treatment of rectal cancer in Poland -- a report from a prospective, multi-centre observational study PSSO_01 conducted under the auspices of the Polish Society of Surgical Oncology. - Błaszkowski, Tomasz; Celban, Grzegorz; Domagała, Maciej; Janas, Jarosław; Jankowski, Michał; Kładny, Józef; Kruszewski, Wiesław Janusz; Listwan, Konrad; Lorenc, Zbigniew; Madej-Mierzwa, Anna; Majewski, Adam; Mądrecki, Marek; et al. (Nowotwory, 2018)