Fig. 2From: Genes associated with polymorphic variants predicting lung function are differentially expressed during human lung development PTCH1 mRNA expression in human lung across Pseudoglandular and Canalicular stages of development. Expression of PTCH1 gene probe 202973_x_at showed a decrease in mRNA expression with increasing fetal lung age. Affymetrix U133 Plus 2 expression array probe data of 38 fetal lung samples with gestational age 7–22 weeksBack to article page