level of butyrophilin subfamily 1 member A1 (human) in cerebrospinal fluid (OBA_2058678, an Ontology of Biological Attributes entry) is the amount of a butyrophilin subfamily 1 member A1 (human) when measured in cerebrospinal fluid. Also known as: cerebrospinal fluid butyrophilin subfamily 1 member A1 (human) amount.