| Austin, 2001 |
Olympus XQ200, Keymed, Southend of Sea, UK) |
X |
– |
| Almond, 2017 |
NR |
X |
X |
| Balekuduru, 2019 |
180 GIF180 (Olympus, Tokyo, Japan) |
– |
X |
| Ben Soussan, 2005 |
Olympus XP 160; 5.9 mm diameter, Olympus XP20 ; 8.5 mm |
X |
X |
| Ferreira, 2011 |
Olympus GIF-XP 160; 5.9 mm |
X |
X |
| Garcia-Cano, 2016 |
Pentax EG-1870 K; Pentax Corporation, Tokyo, Japan, 6 mm |
X |
– |
| Govender , 2015 |
NR |
X |
X |
| Jain, 2016 |
Adult endoscope, Pediatric flexible gastroscope |
X |
X |
| Kini, 2018 |
NR |
X |
X |
| Lazaraki, 2011 |
Fujinon EG-250WR5, Fujinon Corporation, Saitama, Japan, 9.4 mm |
X |
X |
| Saligram, 2017 |
Adult endoscope, Pediatric Flexible Gastroscope |
X |
X |
| Sharma, 2012 |
Olympus EVIS 130 Gastroscope |
X |
X |
| Siddiqui, 2010 |
NR |
– |
X |
| Tahiri, 2015 |
Adult/Pediatric flexible esophagogastroscope |
X |
X |
| Vermuelen, 2019 |
NA |
NA |
NA |
| White, 2001 |
NR |
– |
X |
| Wilkes, 2007 |
Conventional endoscope, Narrow-bore endoscope |
X |
X |
