[1] Univ Zielona Gora, Coll Med, Inst Med Sci, Dept Palliat Med, Ul Zyty 28, PL-65046 Zielona Gora, Poland
[2] Kazimierz Wielki Univ, Dept Psychol, Ul Leopolda Staffa 1, PL-85867 Bydgoszcz, Poland
[3] Univ Hosp Poznan, Osiedla Rusa 55, PL-61245 Poznan, Poland
[4] MediCtr Primary Care Phys, Ul 3 Maja 13, PL-99400 Lowicz, Poland
[5] Jozef Strus Multispecialist Municipal Hosp, Dept Care & Treatment Facil, Ul Szwajcarska 3, PL-61285 Poznan, Poland