<|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 upon request due to an ethical restriction to protect patient data. requests for the underlying data on adiponectin levels and association with related variables can be sent to: institutional ethic committee of istituto di ricovero e cura a carattere scientifico (irccs) casa sollievo della sofferenza. e-mail: comitatoetico@operapadrepio.it.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>