?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Ahmed&rft.aufirst=RM&rft.au=Ahmed%2C+RM&rft.date=23+October+2021&rft.issn=2632-1297&rft.atitle=Tackling+clinical+heterogeneity+across+the+Amyotrophic+Lateral+Sclerosis-Frontotemporal+Dementia+spectrum+using+a+transdiagnostic+approach&rft.title=Brain+Communications&rft.genre=article