1. Department of Endoscopy (Endobatel), Hospital Vita Batel, Curitiba, Brazil
2. International Medical Department, Kyushu University Hospital, Fukuoka, Japan
3. Department of Medicine and Bioregulatory Science, Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
4. Department of Endoscopic Diagnostics Therapeutics, Kyushu University Hospital, Fukuoka, Japan