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Fig. 3 | Environmental Health and Preventive Medicine

Fig. 3

From: Effect of laughter on salivary flow rates and levels of chromogranin A in young adults and elderly people

Fig. 3

Mean values (±SD) normalized as percentage of the baseline (0 min) value for salivary chromogranin A (CgA) levels in samples taken during the comic film protocol (open circles, solid line, n = 15) and in control samples (filled circles, dashed line, n = 15). †, ‡Statistically significant difference (p < 0.05) compared with 0 and 15 min, respectively (repeated measures ANOVA and Bonferroni’s test). *Statistically significantly different (p < 0.05) from the control protocol (Student’s paired t test)

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Environmental Health and Preventive Medicine

ISSN: 1347-4715

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