<|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 database we analyzed is not publicly available for ethical and data safety reasons according to the swedish national board of health and welfare. however, the same dataset can be constructed by request to the swedish national board of health and welfare after approval of the research project by an ethical committee and by the data safety committee at the swedish national board of health and welfare.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>