<|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: All data sources are publicly available. The data for the Xu et al. (2019) instrument of alcohol-associated DNA methylation levels and the data for the VEGF instrument were obtained directly from the supplementary files accompanying their primary papers. The remaining data used for these analyses are accessible within MR-Base.    http://www.mrbase.org/<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>