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 3: Differences in absolute metabolite concentrations (and SE, in mM in aqueous fraction) in NAWM between patients with MS (and normal MRI scan of the brain) and control subjects
Absolute Metabolite Concentration Patients, mM Control Subjects, mM P (Mann-Whitney) P (2-way ANOVA)
Cho 
    Mean 2.16 2.38 <.001 <.001
    SE 0.04 0.05 
Cr 
    Mean 7.03 7.35 .029 .013
    SE 0.07 0.10 
m-Ins 
    Mean 6.38 6.18 n.s. n.s.
    SE 0.15 0.13 
NAA 
    Mean 10.26 10.96 .003 .004
    SE 0.16 0.19 
tNA 
    Mean 13.54 14.62 .002 <.001
    SE 0.21 0.26 
Note:—Cho indicates choline; Cr, creatine; m-Ins, myo-inositol; NAA, N-acetylaspartate; tNA, total N-acetyl compounds including NAA and NAAG; n.s., not significant; MS, multiple sclerosis; NAWM, normal-appearing white matter.

Absolute Metabolite Concentration	Patients, mM	Control Subjects, mM	P (Mann-Whitney)	P (2-way ANOVA)
Cho
Mean	2.16	2.38	<.001	<.001
SE	0.04	0.05
Cr
Mean	7.03	7.35	.029	.013
SE	0.07	0.10
m-Ins
Mean	6.38	6.18	n.s.	n.s.
SE	0.15	0.13
NAA
Mean	10.26	10.96	.003	.004
SE	0.16	0.19
tNA
Mean	13.54	14.62	.002	<.001
SE	0.21	0.26