<|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 are available from the university hospital zurich, department of pulmonology after approval from the local ethics committee zurich, switzerland, and from the applicants own institution, and with agreement from the pi of the study kohler m. due to ethical reasons and the privacy of the patients, the data are available upon request. requests for the data may be sent to malcolm.kohler@usz.ch.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>