<|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: ecrhs and sapaldia cohort studies are bound to the local ethical and legal restrictions with respect to study data. at the time of sapaldia 1 and 2, and ecrhs i and ii providing data publically was not considered and participants were not asked for consent to provide individual data to the public. the data are available on request to scientists. requests are to be addressed to the study primary investigators (www.ecrhs.org/; www.sapaldia.ch) or via the first and/or last authors of the manuscript.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>