Papanikolaou I S, Polymeros D, Kontopoulou C, Chatzilia D, Triantafyllou K
Hepatogastroenterology Unit, 2nd Department of Internal Medicine-Propaedeutic, Attikon University General Hospital, Medical School Athens University, Athens, Greece.
Endoscopy. 2010;42 Suppl 2:E297-8. doi: 10.1055/s-0030-1255787. Epub 2010 Nov 26.