Fig. 2From: Dose–response evaluation of urinary cadmium and kidney injury biomarkers in Chinese residents and dietary limit standardsThe scatter plot for the U-Cd and renal effect biomarkers (Color represents gender: red (female); blue (male), black (gender information is not clear); shape represents occupational: round (non-occupational), triangle (occupational); dot size represents sample size: size = sqrt (sample size)/158)Back to article page