<|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: to protect participant privacy data are available to all interested researchers upon request. data can be requested from the first author (hongjing yan) or jiangsu provincial center for disease control and prevention.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>