<|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. all relevant questionnaire data utilized for these analyses are available within the paper and its supporting information files. complete university of michigan als patient repository questionnaire data, including variables not utilized in the final analysis models, are available on request by contacting dr. eva feldman at efeldman@umich.edu.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>