Fig. 5From: An integrated multi-study analysis of intra-subject variability in cerebrospinal fluid amyloid-β concentrations collected by lumbar puncture and indwelling lumbar catheterProfile plot of cerebrospinal fluid (CSF) (a) Aβ40 and (b) Aβ 42 from subjects in Lilly lumbar puncture studies given placebo for approximately 2 weeks with lumbar punctures obtained at baseline and endpointBack to article page