| | Measurement of Human T-lymphotropic virus 1 recombinant glycoprotein 21 antibody and Human T-lymphotropic virus 2 recombinant glycoprotein 21 antibody (procedure) |  |  | Measurement of Human T-lymphotropic virus 1 recombinant glycoprotein 21 antibody and Human T-lymphotropic virus 2 recombinant glycoprotein 21 antibody |  |  | Human T-cell lymphotropic virus (HTLV) 1 AND 2 rgp21 antibody assayHTLV 1 AND 2 rgp21 antibody assay
 
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