<|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 are from the know your numbers, chart your heart study whose authors may be contacted at charlotte.jones@ubc.ca. the data underlying the analyses presented in this study cannot be made fully available because of patient confidentiality restrictions. ethics approval for the study included the stipulation that only aggregate data be disclosed, and participants were informed during the consent process that individual level data would be available only to the research team/ethics committee. relevant aggregate data are available within the paper and the descriptive tables.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>