
This is a PDF-only article. The first page of the PDF of this article appears above.
1naresh2naresh
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 ) ) [fe394439-5f97-4f7f-882f-c7c87bb61e0f] => Array ( [runtime-id] => fe394439-5f97-4f7f-882f-c7c87bb61e0f [type] => toll-free-key [service-id] => ajnr-ac.highwire.org [access-type] => Controlled [privilege] => Array ( [14406542-d780-41fe-90d2-23e7716c9fcb] => Array ( [runtime-id] => 14406542-d780-41fe-90d2-23e7716c9fcb [type] => toll-free-key ) ) [credentials] => Array ( [method] => toll-free-key [value] => tf_ipsecsha;29e67e26208594a136bd411405f312967d58c33b ) ) ) 1naresh2nareshArray ( [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] => FreeToRead [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 ) ) [7a51c9a1-fbf4-4002-a125-2d2fece308d4] => Array ( [runtime-id] => 7a51c9a1-fbf4-4002-a125-2d2fece308d4 [type] => toll-free-key [service-id] => ajnr-ac.highwire.org [access-type] => FreeToRead [privilege] => Array ( [0f705045-4741-4ccd-a747-a00f017f513f] => Array ( [runtime-id] => 0f705045-4741-4ccd-a747-a00f017f513f [type] => toll-free-key ) ) [credentials] => Array ( [method] => toll-free-key [value] => tf_ipsecsha;29e67e26208594a136bd411405f312967d58c33b ) ) ) 1naresh2nareshArray ( [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 ) ) [fe394439-5f97-4f7f-882f-c7c87bb61e0f] => Array ( [runtime-id] => fe394439-5f97-4f7f-882f-c7c87bb61e0f [type] => toll-free-key [service-id] => ajnr-ac.highwire.org [access-type] => Controlled [privilege] => Array ( [14406542-d780-41fe-90d2-23e7716c9fcb] => Array ( [runtime-id] => 14406542-d780-41fe-90d2-23e7716c9fcb [type] => toll-free-key ) ) [credentials] => Array ( [method] => toll-free-key [value] => tf_ipsecsha;29e67e26208594a136bd411405f312967d58c33b ) ) ) 1naresh2nareshArray ( [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 ) ) [fe394439-5f97-4f7f-882f-c7c87bb61e0f] => Array ( [runtime-id] => fe394439-5f97-4f7f-882f-c7c87bb61e0f [type] => toll-free-key [service-id] => ajnr-ac.highwire.org [access-type] => Controlled [privilege] => Array ( [14406542-d780-41fe-90d2-23e7716c9fcb] => Array ( [runtime-id] => 14406542-d780-41fe-90d2-23e7716c9fcb [type] => toll-free-key ) ) [credentials] => Array ( [method] => toll-free-key [value] => tf_ipsecsha;29e67e26208594a136bd411405f312967d58c33b ) ) ) 1naresh2nareshArray ( [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 ) ) [fe394439-5f97-4f7f-882f-c7c87bb61e0f] => Array ( [runtime-id] => fe394439-5f97-4f7f-882f-c7c87bb61e0f [type] => toll-free-key [service-id] => ajnr-ac.highwire.org [access-type] => Controlled [privilege] => Array ( [14406542-d780-41fe-90d2-23e7716c9fcb] => Array ( [runtime-id] => 14406542-d780-41fe-90d2-23e7716c9fcb [type] => toll-free-key ) ) [credentials] => Array ( [method] => toll-free-key [value] => tf_ipsecsha;29e67e26208594a136bd411405f312967d58c33b ) ) ) 1naresh2nareshArray ( [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] => FreeToRead [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 ) ) [df240cab-c76b-45e6-95e2-ae174837b9ed] => Array ( [runtime-id] => df240cab-c76b-45e6-95e2-ae174837b9ed [type] => toll-free-key [service-id] => ajnr-ac.highwire.org [access-type] => FreeToRead [privilege] => Array ( [88384d9d-ad56-4e1d-a510-3e461b76fdf6] => Array ( [runtime-id] => 88384d9d-ad56-4e1d-a510-3e461b76fdf6 [type] => toll-free-key ) ) [credentials] => Array ( [method] => toll-free-key [value] => tf_ipsecsha;29e67e26208594a136bd411405f312967d58c33b ) ) )Getting It Right the First Time | American Journal of Neuroradiology