<|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: the authors confirm that, for approved reasons, some access restrictions apply to the data underlying the findings. department of veterans affairs policy and u.s. federal law prohibit disclosure of veteran information outside the u.s. veterans health administration. investigators interested in obtaining data to replicate our analysis and who have appropriate affiliation with the u.s. veterans health administration are welcome to contact mr. charlie stroup, the deputy director for health information access at the va national data systems office. mr. stroup's telephone is 202-465-1581, and his email address is charlie.stroup@va.gov.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>