Figure 1
![Figure 1](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1755-8794-5-10/MediaObjects/12920_2011_Article_293_Fig1_HTML.jpg)
Expression levels of mechanism-based candidate genes versus birth weight. Illumina's HumanHT-12 v3 Expression of (A) INSR (transcript ID: ILMN_1670918) in cord blood (n = 48), and (B) IGF1R (transcript ID: ILMN_1675048) in placenta (n = 48). Real time RT-PCR expression of (C) IGF2BP2 in cord blood (n = 119), and (D) IGFBP1 in placenta (n = 150).