Efficacy of Second Forward-view Examination of Left Colon for Adenoma Detection During Colonoscopy
Conditions
Interventions
- BEHAVIORAL: re-examination
- BEHAVIORAL: extended withdraw time
Sponsor
Changhai Hospital
Collaborators
- [object Object]
- [object Object]
- [object Object]
- [object Object]
- [object Object]
- [object Object]
- [object Object]
- [object Object]
- [object Object]
- [object Object]
- [object Object]
- [object Object]
- [object Object]
- [object Object]
- [object Object]
- [object Object]
- [object Object]
- [object Object]
- [object Object]