level of butyrophilin subfamily 3 member A3 (human) in cerebrospinal fluid (OBA_2055953, an Ontology of Biological Attributes identifier) is the amount of a butyrophilin subfamily 3 member A3 (human) when measured in cerebrospinal fluid. Also known as: cerebrospinal fluid butyrophilin subfamily 3 member A3 (human) amount.