level of serine/threonine-protein phosphatase 2A regulatory subunit B'' subunit alpha (human) in cerebrospinal fluid (OBA_2058516, an Ontology of Biological Attributes identifier) is the amount of a serine/threonine-protein phosphatase 2A regulatory subunit B'' subunit alpha (human) when measured in cerebrospinal fluid. Also known as: cerebrospinal fluid serine/threonine-protein phosphatase 2A regulatory subunit B'' subunit alpha (human) amount.