<|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. our data are available upon request because of an ethical restriction (irb policy). the names of the individuals that readers may contact to request the data are ihsan solaroglu, md. and yusuf izci, md.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>