Figure 4 Flow chart of the MDS MSA Study Group aims Figure 4 | Flow chart of the MDS MSA Study Group aims. The work programme of the International Parkinson and Movement Disorders Society multiple system atrophy (MDS MSA) Study Group is split into two parts: a basic and clinical research part and an educational part. Several work packages were developed in view of the ultimate goal: the development of novel therapies for patients with MSA. Krismer, F. & Wenning, G. K. (2017) Multiple system atrophy: insights into a rare and debilitating movement disorder Nat. Rev. Neurol. doi:10.1038/nrneurol.2017.26