Fig. 1From: Communication Bridge™-2 (CB2): an NIH Stage 2 randomized control trial of a speech-language intervention for communication impairments in individuals with mild to moderate primary progressive aphasiaSPIRIT figure of study timeline. Note: CP, Communication Partner. * For additional details of the screening and enrollment procedures see Tables 1 and 2 in the study protocol. ** The randomization scheduled requires knowledge of the primary progressive aphasia subtype and thus allocation occurs following the baseline assessment 1 visit. *** Control and experimental intervention arms run in parallel.Back to article page