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. 2021 Nov 6;9:179. doi: 10.1186/s40478-021-01282-8

Fig. 1.

Fig. 1

Experimental design. PD, HC, and SWEDD samples were randomly selected from available PPMI subjects as a pilot study. Aliquots from each subject were distributed to three independent laboratories for αSyn-SAA according to proprietary methods without procedural coordination or communication. αSyn-SAA was performed and initially analyzed in blinded manner with respect to diagnosis. After completion of assays, 2 PD and 2 SWEDD subjects were removed from further analysis due to interval changes in consensus diagnosis