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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: Clinical **data** were collected from medical records. The anthracycline cumulative dose was measured in doxorubicin (DOX) equivalents (mg/m 2 ), that is, daunorubicin total dose multiplied by 0.5, epirubicin total dose multiplied by 0.6, idarubicin total dose multiplied by 5, and mitoxantrone total dose multiplied by 4 (13). LV ejection fraction (LVEF) was measured by 2-dimensional echocardiography at enrollment and at 1 and 2 years of follow-up and analyzed at an independent core laboratory (12). All participants provided a blood sample at enrollment.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

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