(Q33730692)
Statements
1 reference
Assessing "best evidence": issues in grading the quality of studies for systematic reviews (English)
1 reference
K N Lohr
1 reference
T S Carey
1 reference
1 September 1999
1 reference
1 reference
25
1 reference
470-479
1 reference
Identifiers
1 reference
1 reference