Ellis, V A comparison of IgG anti-rubella activity in frozen serum stored in primary gel separation tubes or secondary tubes. [electronic resource] - Journal of clinical pathology Jan 2004 - 104-6 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0021-9746 Standard No.: 10.1136/jcp.57.1.104 doi Subjects--Topical Terms: AdultAntibodies, Viral--bloodBlood Preservation--methodsBlood Specimen Collection--methodsCryopreservation--methodsGelsHumansImmunoglobulin G--bloodRubella virus--immunology