<|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: data cannot be publicly available for ethical or legal reasons, e.g., public availability would compromise patient privacy. the paper used two key australian institute of health and welfare data sources for the health outcome measures: the national hospital morbidity database and the national mortality database. the underlying data for these two data sets are owned by the australian states and territories and cannot be made publicly available for confidentiality reasons. as the authors used data on hospitalisation and mortality at quite a low geographic level, this may compromise individual patient level privacy.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>