label: Beta-2-Microglobulin.CSF/Beta-2-Microglobulin.serum &#x7C; Serum and CSF &#x7C; Chemistry - non-challenge
label_lc: beta-2-microglobulin.csf/beta-2-microglobulin.serum &#x7c; serum and csf &#x7c; chemistry - non-challenge