Fig. 1From: Clinical, hematological and some biochemical alterations during diarrhea in Friesian calves naturally infected with E. coli and SalmonellaThe correlation between serum vitamin D3 and NT-proBNP in 33 diarrheic calves. The graph illustrates a strong negative correlation (r = −0.874) between vitamin D3 (ng/ml) and NT-proBNP (pg/ml), r = Pearson correlation coefficientBack to article page