<|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: our study is based on danish national register data. as such, these data belong not to us but to the danish ministry of health and we are not permitted to share them. however, interested parties can obtain the data on which our study was based by submitting a research protocol to the danish data protection agency (datatilsynet) and then, once ddpa permission has been received, applying to the ministry of health's research service (forskerservice) at forskerservice@ssi.dk.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>