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. Author manuscript; available in PMC: 2017 Jul 27.
Published in final edited form as: Neurobiol Aging. 2014 Jul 29;36(1):53–59. doi: 10.1016/j.neurobiolaging.2014.07.030

Fig. 2.

Fig. 2

GABA levels grouped by diagnostic category (A), PiB status (B), and APOE carrier status (C). * p < 0.05; ns: not significant; t test. Abbreviations: APOE, apolipoprotein E; GABA, γ-aminobutyric acid; PiB, Pittsburgh compound B.