<|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 are from a census-linked mortality follow-up study and cannot be made available due to privacy issues. researchers can gain full access to the data by submitting an application to the privacy commission belgium. in order to get permission to use data from the belgian population register linked to census data an authorization request (in dutch or french) needs to be submitted to the belgian privacy commission. the authorization request includes an application form and additional forms regarding data security. the necessary forms for the authorization request can be downloaded from the privacy commission website (www.privacycommission.be). next to information on the applicant and a list of requested data, the authorization request should specify why the data from the population register are necessary, for which time span data will be stored, and who will have access to the data.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>