<|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: Subjects' MEG **data** were aligned by using their individual headframe coordinate system defined through the nasion point and the two ear canals. A t-value difference map was calculated comparing ZLVBDD i values of PTSD patients and controls on a voxel-by-voxel basis. Using AFNI (Analysis of functional neuroimages [44]) the t-value difference map was overlaid with the CH2 brain template (see Figure 1).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

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