(Q29547891)
Statements
GRADE guidelines: 3. Rating the quality of evidence (English)
Vist GE
Oxman AD
Guyatt GH
Balshem H
Helfand M
Schünemann HJ
Kunz R
Brozek J
Falck-Ytter Y
Meerpohl J
Norris S
April 2011
64
401-6