<|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 cannot be made publicly available due to nih certificate of confidentiality ethical restrictions that protect the confidentiality of the immigrant population in the chamacos study. requests for data access should be directed to brenda eskenazi at eskenazi@berkeley.edu.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>