NHMRC additional levels of evidence and grades for recommendations for developers of guidelines. Table 3. NHMRC Evidence Hierarchy: designations of 'levels of evidence' according to type of research question (including explanatory notes). National Health and Medical Research Council; 2009....
Table 3. NHMRC Evidence Hierarchy: designations of 'levels of evidence' according to type of research question (including explanatory notes). National Health and Medical Research Council; 2009.Merlin T, Weston A, Tooher R, Middleton P, Salisbury J, Coleman K, Norris S, Grimmer-Somers ...