(a)
(b)
(c)
(d)
Figure 3: (a, b) Group A: orcein (a) and picrosirius (b) concordant, stage 1/2. (c, d) Group B: orcein (a) and picrosirius (b) concordant, stage 3/4. Original magnification: (a, b, c, d) 4x.