BDNF and Diamond-Blackfan anemia: In this study, we first examined whether CNVs in the GSK 3® and BDNF genes based on the DGV could be found in patients with BDs as assessed by quantitative real‐time PCR (qRT‐PCR) with TaqManR Copy Number Assays (Applied Biosystems), and if found, we compared the prevalence of the CNVs between patients with BDs and healthy subjects.