Table 1.

Percentage field area occupied by immunopositive structures (mean ± SEM, n = 10)

Stage	CD31	Tryptase	Chymase
I	4.1 ± 1.0a	1.9 ± 0.5a	0.14 ± 0.03a
II	6.9 ± 1.5b	3.0 ± 0.8a	0.23 ± 0.07a
III	11.7 ± 2.2c	4.6 ± 1.1b	0.60 ± 0.10b
IV	13.8 ± 2.8c	5.2 ± 1.5b	0.80 ± 0.30b

a,b,c: means labelled with a different letter are statistically different (P < 0.05, One-way anova followed by Bonferroni’s test for multiple comparisons).