<|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: all relevant data except original genotyping data are available from the figshare database, doi: http://dx.doi.org/10.6084/m9.figshare.1301774. due to ethical restrictions, genotyping data cannot be made publicly available. this dataset is available upon request from the chinese national twin registry (cntr) school of public health, peking university for researchers who meet the criteria for access to confidential data. requests for this data can be sent to the cntr (gaowenjing1979@gmail.com).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>