<|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 available upon request due to legal and ethical restrictions from the medical ethics committee of the university medical 202 center utrecht. interested researchers may contact branko m. van hulst (b.vanhulst@umcutrecht.nl), patrick de zeeuw (p.dezeeuw@umcutrecht.nl), and sarah durston (s.durston@umcutrecht.nl).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>