<|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 authors confirm that all data underlying the findings are fully available without restriction. data is available for 526 out of the 668 participants in the supporting information file. the rest of the data can be obtained by contacting the corresponding author hazem s. abou-youssef (hazem2000@kasralainy.edu.eg) to ensure the confidentiality of patient data.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>