<|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: data were obtained from a third party; i.e., the authors did not generate the primary dataset themselves. data may be requested from the swedish national board of health and welfare and statistics sweden. the data available to the authors are de-identified. the specific data used by the authors are archived at the department of medical epidemiology and biostatistics, karolinska institutet.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>