Systematic Reviews
Copyright ©The Author(s) 2015.
World J Gastroenterol. Apr 21, 2015; 21(15): 4722-4734
Published online Apr 21, 2015. doi: 10.3748/wjg.v21.i15.4722
Table 1 Detailed evidence levels of respective references are provided for each consensus statement
Consensus statementEvidence level distribution
Recommendation grade
1 ++1 +1 -2 ++2 +2 -34
1000181716B
2000415179B
30101131510A
4000032311C
500002117C
600004038C