title: Letter: T lymphocytes in cerebrospinal fluid.
mesh_terms: D001402:B-Lymphocytes; D002555:Cerebrospinal Fluid / Q000166:cytology*; D006801:Humans; D007938:Leukemia / Q000134:cerebrospinal fluid; D008581:Meningitis / Q000134:cerebrospinal fluid; D013601:T-Lymphocytes