<|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, for approved reasons, some access restrictions apply to the data underlying the findings. the dataset used for this study falls under the restricted data use policy of the add health study and contains sensitive information that make it ethically unsuitable for public deposition. a minimal raw dataset necessary to reproduce our results will be provided to researchers upon request and who have completed the restricted data contract. (http://www.cpc.unc.edu/projects/addhealth/data/restricteduse/add-health-restricted-use-data-contract-1). requests may also be made by contacting add health at addhealth@unc.edu.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>