<|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: The main sources of data were the electronic medical records and clinical reports of each one of the patients. The history of recent contact with a confirmed case, the diagnosis time delay, the symptom and signs of onset and evolution, the laboratory and chest X-rays were analyzed. In order to avoid biases and ensure the patients' data confidentiality, all documents were handled after removing their filiation data. The corresponding author had full access to all data in the study and had final responsibility for the decision to submit for publication.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>