<|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 was based on swedish population register data that includes sensitive information. therefore, an un-identifiable dataset that was used for the analyses is located in a security server at the institution the authors are affiliated with. this dataset is available upon request, given that the person who 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_/). after such approval, all interested parties will be able to obtain the dataset in the same manner that the authors did.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>