<|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 some access restrictions apply to the data underlying the findings. this study is based on data collected by the cancer registry of norway (a national disease register) and biological specimens owned and administered by the cancer registry of norway. the data on which the present study is based contain sensitive information and are located on a security server at the cancer registry of norway with restricted access. these data are available upon request to judith schwartzbaum (ja.schwartzbaum@gmail.com), the corresponding author, given that the interested party obtains approval from the cancer registry of norway (http://kreftregisteret.no/en/) and the regional ethics committee of southern norway (https://helseforskning.etikkom.no/ikbviewer/page/forside?ikblanguagecode=us).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>