<|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 data presented in the article is available upon request but cannot be made available directly in the manuscript because each request will need to be approved by the clinical trial commission (commission interne des études cliniques), because of identifying patient information. requests can be sent to: pr. eric lartigau, radiation oncology department, oscar lambret center, 3 rue frédéric combemale, 59000 lille france e-lartigau@o-lambret.fr.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>