<|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 was taken from 4 studies. Links to the studies can be found below.  Study 1: https://www.ncbi.nlm.nih.gov/pubmed/25440758  study 2: https://www.ncbi.nlm.nih.gov/pubmed/31002584  Study 3: https://www.ncbi.nlm.nih.gov/pubmed/27726233s  Study 4: https://www.ncbi.nlm.nih.gov/pubmed/31014168<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>