highly significantP < 0.01
Results were considered statistically significant when P < 0.05 (*), and highly significant when P < 0.01 (**), P < 0.001 (***) or P < 0.0001 (****).
Results were considered statistically significant when P < 0.05 (*), and highly significant when P < 0.01 (**), P < 0.001 (***) or P < 0.0001 (****).