<|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. all the relevant data that is needed to replicate this study and to draw the conclusions for this study is within the paper and the supporting information files. data underlying the findings described in the paper (morphological and metric features as well as micro-ct 3d reconstructions) are already provided in the main text and supporting information. the variables that can be extracted from the original micro-ct files regarding the edj surface, pulp cavity and tissue proportions are already included in the paper. however, if secondary data or images are needed, or a personal observation on the original fossils is necessary, please contact dr. liu (liuwu@ivpp.ac.cn) or dr. xing (xingsong@ivpp.ac.cn).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>