<|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. data used in the study are held by the ministry of public health, thailand, and are not open access based on the need on patient confidentiality. i confirm that other researchers will be able to obtain all data from the ministry in the same manner that we do. after ethical approval from the ethical committee of ministry of public health, the requests could be done through director of each hospital participating in the study.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>