<|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: all relevant data are within the paper. however, due to ethical reasons and patient confidentiality, the original data (even in an anonymised format) cannot be made publicly accessible for patient confidentiality reasons as per the restrictions imposed by nottingham research ethics committee 1. requests for data can be sent to maarten.taal1@nhs.net.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>