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: 
Comparison of subjective scoring by observers A and B, expressed on a 5-point scale
SP-CTAMP-CTA
Observer AObserver BObserver AObserver B
Arterial enhancement3.4 ± 0.73.2 ± 0.73.8 ± 0.63.6 ± 0.7
Detail visibility3.1 ± 0.33.4 ± 0.62.8 ± 0.53.3 ± 0.7
Noise3.0 ± 0.63.0 ± 0.62.0 ± 0.22.5 ± 0.5
Venous contamination2.9 ± 0.82.7 ± 0.63.1 ± 0.82.4 ± 0.7