<|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 authors confirm that all data underlying the findings are fully available without restriction. by arrangement with the sponsor, the ninds, warcef data are housed at the statistical analysis center in the department of biostatistics at columbia university. we confirm that our data are available upon request. data requests can be addressed to dr. shunichi homma and the warcef executive committee, who can be contacted at sh23@cumc.columbia.edu.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>