<|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: There are ethical restrictions on sharing the de-identified data set underlying this study. The informed consent forms provided to the participants did not mention that their data may be shared for publication. The study was approved by the Medical Ethical Committee of Amsterdam UMC, location VUmc, Amsterdam; the Netherlands. One can contact the METc (metc@vumc.nl) to request the data (Reference number 2013-067).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>