<|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: Due to ethical restrictions by the Unity Health Toronto Research Ethics Board, the individual patient-level data underlying this study may not be made publicly available. However, interested and qualified researchers who meet the criteria for access to confidential data may submit data access requests to: Sharon Freitag, Senior Director, Research Ethics; Office Phone: 416-864-6060 Ext. 42385 E-mail: Sharon.Freitag@unityhealth.to.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>