level of leucine-rich repeat transmembrane neuronal protein 4 (human) in cerebrospinal fluid (OBA_2059587, an Ontology of Biological Attributes identifier) is the amount of a leucine-rich repeat transmembrane neuronal protein 4 (human) when measured in cerebrospinal fluid. Also known as: cerebrospinal fluid leucine-rich repeat transmembrane neuronal protein 4 (human) amount.