<|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 all data underlying the findings are fully available without restriction. the data from the modified delphi process for this study are available upon request from dr. annette browne, the nominated principal investigator for this study, due to ethical restrictions. any requests for these data can be directed to dr. browne. she can be reached at: annette.browne@nursing.ubc.ca.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>