<|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 underlying the findings of our study are made available upon request (corresponding author: samir.helmy@meduniwien.ac.at). data can not be made public due to ethical restrictions as they concern sensitive patient information. college research ethics committee (crec) research ethics office email: rec@kcl.ac.uk tel: 020 7848 3871.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>