For those of you who've joined CliniCrowd's (CliniCrowd.info) Mannitol registry, it is crucial that you fill-out the follow up registry on a monthly basis at clinicrowd.info/pd-registry... . This is the only way we all can help the Parkinson's community learn if the Mannitol can help stop the disease degradation.
The registry is also open for those of you that don't take Mannitol . You can use the registries to monitor your disease.