<|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: we understand the importance of openness of data and agree with your policy on sharing data and materials. our data is kept by arbor research collaborative for health. unfortunately, our data cannot be made publicly available for ethical and legal reasons. most of the subjects did not give their informed consent regarding their personal data being made publicly available. data are available from arbor research collaborative for health for researchers who meet the criteria for access to confidential data. its homepage address is as follows: http://www.arborresearch.org. at this site, users can send emails to the arbor research collaborative for health.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>