Fig. 9From: 3D chick embryo chorioallantoic membrane model as an in vivo model to study morphological and histopathological features of feline fibrosarcomasStatistical analyses of PCNA immunoexpression in tumors grown from FFS1 (grade III) and FFS3 (grade II) cell line on the CAM (a) and in spontaneous feline fibrosarcomas (grade III and II) (b). P < 0.05 was assigned as significant (*), while p < 0.001 was assigned as highly significant (***)Back to article page