<|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: data presented are from the irish nun eye study and there are ethical restrictions on providing unrestricted access. however, the authors confirm that an ethically compliant dataset will be made available upon request by contacting dr gareth mckay at centre for public health, queen's university belfast, northern ireland, bt12 6ba. this study was approved by the institutional review board and the office for research ethics committee northern ireland.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>