<|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 datasets included in this study are protected by federal confidentiality laws due to their sensitive nature. thus, they cannot be made publicly available without a data use agreement. all data used in this study are kept in a secure data repository at the breast cancer surveillance consortium. access to data in this repository for this study can be gained using a data use agreement. contact person: katierose richmire, group health research institute, email: richmire.kx@ghc.org.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>