Fig. 3From: Vascular adhesion protein-1 expression is reduced in the intestines of infants with necrotizing enterocolitis: an observational research studyTwo dimensional hierarchical clustering generated four clinical groups with visually different microscopic patterns. a Higher intensity of red colour indicates a higher expression of a given clinical parameter. b Microscopic image samples from group 1, (c) group 2, (d) group 3 and (e) group 4. Higher VAP-1 expression is indicated by increased green-blue pixel intensity. GA (gestational age), PMA (postmenstrual age), PNA (postnatal age)Back to article page