<|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, for approved reasons, some access restrictions apply to the data underlying the findings. data are available from the children's hospital association (cha) pediatric health information system (phis) database, comprised of not-for-profit, member u.s. children's hospitals, http://www.chca.com. all relevant analyses performed by our research team using the database are included in the manuscript and its supporting information files. we contacted the children's hospital association (cha) pediatric health information system (phis) administrators regarding the provision of accession numbers or dois to plos one to facilitate access to the data. phis, a non-profit database, contains deidentified patient data. however, it is possible to identify institutional-specific data from the hospitals that contribute data to phis. thus, the phis administrators will need to be contacted prior to release of data to interested parties. we are happy to collaborate to assist interested parties in re-analyzing the data, once they have approval from phis to access the database.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>