Figure 4From: Investigating the effects of climate variations on bacillary dysentery incidence in northeast China using ridge regression and hierarchical cluster analysis Combination of cluster analysis and ridge regression analysis between climatic variables and logarithmic incidence of bacillary dysentery (1987–1996, Shenyang, China). A) 1987–1996, January – July. B) 1987–1996, August – December.Back to article page