When significant interactions between
treatment and time were found, Tukey’s multiple comparison
test were performed for each time point (MINITAB,
release 14.13; Minitab Inc). Correlations between
dependent measures were conducted using Spearman's
partial correlation coefficients controlling for subjects
and corresponding baseline values (two-tailed test),
(SPSS software, version 19; SPSS Inc., Chicago, IL,
USA)