Fig. 2

Nasopharyngeal temperature at different points in three groups. Time point, 5 min after anesthesia induction (T1), 30 min at the beginning of surgery (T2), 60 min at the beginning of surgery (T3), 90 min at the beginning of surgery (T4); +statistical significance between the group A and group B; *statistical significance between the group A and group C; #statistical significance between the group B and group C