<|begin_of_text|><|start_header_id|>system<|end_header_id|>

You are an expert at identifying data availability statements in scientific text. A data availability statement describes where research data can be found or how it can be accessed.<|eot_id|><|start_header_id|>user<|end_header_id|>

Determine if the following text contains a data availability statement. Answer with 'yes' or 'no'.

Text: genotyping of samples was provided through the genetic association information network (gain). the dataset used for the analyses described in this manuscript was obtained from the database of genotypes and phenotypes (dbgap) found at http://www.ncbi.nlm.nih.gov/gap through dbgap accession number #20726-2. due to ethical restrictions, data from the neuroimage study are available upon request to jan.buitelaar@radboudumc.nl.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>