<|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 ethics committee of the medical faculty of ludwigs-maximilians-university has placed a publication restriction on the text-based data, due to protection of privacy of the participants and have changed the ethics statement accordingly. a de-identified dataset is available from the corresponding author upon request.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>