Figure 4From: Study of the betulin enriched birch bark extracts effects on human carcinoma cells and ear inflammationTreatment with A. 1 pp and B. 3 pp samples. A. Epythelial and gristly tissue: discreet subepitelial inflammator infiltrate (HE x 200), 1 pp treatment, Epythelial gristly and muscular tissue with a discreet subepitelial inflammation and hiyperemiate blood vessels (HE x 200) 3 pp treatment.Back to article page