Ontology of Biological Attributes identifier OBA_2058684 (level of 28 kDa heat- and acid-stable phosphoprotein (human) in cerebrospinal fluid) is the amount of a 28 kDa heat- and acid-stable phosphoprotein (human) when measured in cerebrospinal fluid. Also known as: cerebrospinal fluid 28 kDa heat- and acid-stable phosphoprotein (human) amount.