1naresh
Array
(
    [urn:ac.highwire.org:guest:identity] => Array
        (
            [runtime-id] => urn:ac.highwire.org:guest:identity
            [type] => guest
            [service-id] => ajnr-ac.highwire.org
            [access-type] => Controlled
            [privilege] => Array
                (
                    [urn:ac.highwire.org:guest:privilege] => Array
                        (
                            [runtime-id] => urn:ac.highwire.org:guest:privilege
                            [type] => privilege-set
                            [privilege-set] => GUEST
                        )

                )

            [credentials] => Array
                (
                    [method] => guest
                )

        )

)
1naresh
Array
(
    [urn:ac.highwire.org:guest:identity] => Array
        (
            [runtime-id] => urn:ac.highwire.org:guest:identity
            [type] => guest
            [service-id] => ajnr-ac.highwire.org
            [access-type] => Controlled
            [privilege] => Array
                (
                    [urn:ac.highwire.org:guest:privilege] => Array
                        (
                            [runtime-id] => urn:ac.highwire.org:guest:privilege
                            [type] => privilege-set
                            [privilege-set] => GUEST
                        )

                )

            [credentials] => Array
                (
                    [method] => guest
                )

        )

)


Table 2: 
Levels of evidence for intervention studiesa
Levels of EvidenceType of Evidence
1aHigh-quality meta-analyses, systematic reviews of RCTs, or RCTs with a very low risk of bias
1bWell-conducted meta-analyses, systematic reviews of RCTs, or RCTs with a low risk of bias
1cMeta-analyses, systematic reviews of RCTs, or RCTs with a high risk of biasb
2aHigh-quality systematic reviews of case–control or cohort studies; high-quality case–control or cohort studies with a very low risk of confounding, bias, or chance and a high probability that the relationship is causal
2bWell-conducted case–control or cohort studies with a low risk of confounding, bias, or chance and a moderate probability that the relationship is causal
3Case–control or cohort studies with a high risk of confounding bias or chance and a significant risk that the relationship is not causalb
4Nonanalytic studies (for example, case reports, case series)
5Expert opinion, formal consensus
  • Note:—RCT indicates randomized controlled trial.
  • ↵a Adapted from Reference 3a.
  • ↵b Studies with a level of evidence indicated by—should not be used as a basis for making a recommendation.