<|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 cannot be made publicly available due to ethical restrictions defined in the informed consent form for the patients and implemented by the ethics committee. data are available upon request to anne.schienle@uni-graz.at.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>