<|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 authors received approval to access dalhousie multiple sclerosis research unit clinical records after submitting a research proposal to the research ethics board, capital district health authority, department of health and wellness, nova scotia, canada.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>