<|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 data used for our analyses cannot be made publicly available because we did not receive a permission for such disclosure from the local ethics committee. data are available from the database of hanoi cohort study via the corresponding author after getting the authorization of the institutional ethics committee.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>