<|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 datasheet is not presently available as it contains information pertaining to a limited patient population from which individuals may be able to be identified due to its finite size. making this dataset publicly available is precluded by the authors' ethical approval. if readers wish to view the dataset, they should contact melitta mcnarry at m.mcnarry@swansea.ac.uk.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>