<|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 participant 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. leora vegosen (lvegosen@jhsph.edu). data may be obtained through the agricultural health study (ahs) executive committee, per national institutes of health and ahs policy (http://aghealth.nih.gov/). and the policy of the agricultural health study (ahs) requires confidentiality for human subjects and that data be obtained via the ahs executive committee.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>