title: Hepatitis B antigens in cerebrospinal fluid.
mesh_terms: D002648:Child; D006511:Hepatitis B Antigens / Q000134:cerebrospinal fluid*; D006801:Humans; D007945:Leukemia, Lymphoid / Q000134:cerebrospinal fluid*; D008297:Male; D008577:Meningeal Neoplasms / Q000134:cerebrospinal fluid*
chemical_list: D006511:Hepatitis B Antigens