Statistical Analysis
Data were analyzed using Repeated-measures analysis of variance testing to detect significant differences in corresponding differences within donors. Post-hoc multiple comparison testing was undertaken using Holms-Sidak test to isolate differences between conditions. Data are expressed as mean ± S.E.M. Significance was set at p < 0.05. Statistical analysis was undertaken using GraphPad Prism 6.0 (La Jolla, CA).