“…Silverstein and Greenspan [13] who exam ined 81 patien ts found elevated m ucoproteins only in tum ours of the brain and in occlusive vascular diseases. Since th e y found sim ilar values am ong healthy people and am ong patients suffering from non-neurological diseases, they concluded th a t th e determ ination of th e m ucoproteins of the C.S.F.…”