<|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. this study is based on national registers in sweden and the datasets contain sensitive information. therefore only the un-identifiable dataset that was used for the analyses presented in this paper is located in a security server at the institution the authors are affiliated with. this dataset that the authors used is available upon request from the corresponding author, given that the person that is interested to use it can obtain approval from the data owners, the national board of health and welfare in sweden (http://www.socialstyrelsen.se/english) and statistics sweden (http://www.scb.se/en_/).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>