<|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: these analyses were performed using raw data that are available only within the us department of veterans affairs firewall in a secure research environment, the va informatics and computing infrastructure (vinci). in order to comply with va privacy and data security policies and regulatory constraints, only aggregate summary statistics and results of our analyses are permitted to be removed from the data warehouse for publication. the authors have provided detailed results of the analyses in the paper. these restrictions are in place in order to maintain patient privacy and confidentiality. access to these data can be granted to persons who are not employees of the va; however, there is an official protocol that must be followed for doing so. those wishing to access the raw data that were used for this analysis may contact adi gundlapalli, md (adi.gundlapalli@hsc.utah.edu) to discuss the details of the va data access approval process. the authors also confirm that an interested researcher would be able to obtain a de-identified, raw dataset upon request pending ethical approval.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>