<|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: no new software code or software data were generated for this study. all material necessary to reproduce this study is commercially available and described in materials and methods. materials not commercially available (mab<hher3-ecd>m-208 and heregulin1 beta) will be made freely available by dr. birgit bossenmaier (roche diagnostics gmbh, penzberg, germany; email: birgit.bossenmaier@roche.com).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>