<|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: deposition of patient level data in a public repository was not specified in the study protocol as approved by the ethics committee before the study started. patient level data will be available on request, provided that approval from the regional ethics committee is given. patient level data requests may be sent to the corresponding author or to the regional ethics committee, umeå. corresponding author: anna-lotta irewall (anna-lotta.irewall@umu.se), regional ethics committee, umeå: tanja gyldén (secretary) (tanja.gylden@umu.se). patient level data requests may be sent to the corresponding author or to the regional ethics committee, umeå. corresponding author: anna-lotta irewall (anna-lotta.irewall@umu.se), regional ethics committee, umeå: tanja gyldén (secretary) (tanja.gylden@umu.se).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>