<|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: the authors confirm that, for approved reasons, some access restrictions apply to the data underlying the findings. the nationwide data source of this study is from the national health insurance research database (nhird). the nhird is managed and publicly released by the national health research institutes (nhri) for research purposes only. although confidentiality is maintained according to the data regulations of the nhri, the database study still needs to be approved by the local ethics committee. under the ethical concern and the policy of nhri, the database is not fully available. detailed information about the data request is provided on the nhri website (http://nhird.nhri.org.tw). comments, problems or requests about the data application could be sent to this e-mail address at the nhri (e-mail: nhird@nhri.org.tw).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>