<|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: due to ethical and legal restrictions, data underlying this study cannot be made publicly available. the authors confirm that a de-identified dataset will be made available upon request from the research centre for prevention and health (http://www.regionh.dk/fcfs/menu/). data requests can be sent to allan linneberg (allan.linneberg@regionh.dk).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>