<|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 are available from the medical ethical committee of kempenhaeghe and the local ethical committee of maastricht university for researchers pending ethical approval. requests for data used in section 3.2 can be sent to j.m. portegies, who may be contacted at j.m.portegies@tue.nl. requests for data used in section 3.3 can be sent to dr. p.p.w. ossenblok, who may be contacted at ossenblokp@kempenhaeghe.nl.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>