<|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 restrictions related to patient privacy, data are available upon request for researchers who meet the criteria for access to confidential information. requests for data access may be sent to dr. francois schellevis (f.schellevis@nivel.nl).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>