Fig. 2From: Serum periostin levels in adults of Chinese descent: an observational studyHistograms illustrating the differences between distribution of serum periostin between Chinese (n = 118) and Caucasians (n = 420) without asthma. Median periostin levels were higher in Chinese non-asthmatics compared to Caucasian non-asthmatics. a Chinese frequency histogram. b Caucasian frequency histogramBack to article page