 They also indicated a fragmentation in clinical approach to TS, as its core symptoms can be viewed as part of a neurology specialty (movement disorder) or child and adolescent psychiatry.They hoped the guidelines would "help clinicians to offer the best clinical service ... and inspire clinical researchers as well as politicians to no longer overlook the high burden of tic disorders".Research since 1999 has advanced knowledge of Tourette's in the areas of genetics, neuroimaging, neurophysiology, and neuropathology, but questions remain about how best to classify it and how closely it is related to other movement or psychiatric disorders.