<|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 from the achmea health database were linked to data from statistics netherlands in a secured manner. all our analyses were performed within strict privacy rules, i.e. only researchers who received a signed permit were allowed to do analyses within a secured environment at our institute. therefore, it is not possible to make the data underlying our findings fully available. a request for data from the achmea health database can be done by filling in a request form, which can be found online via https://www.zilverenkruis.nl/zorgaanbieders/kwaliteit-en-innovatie/paginas/ahd.aspx. a request for data from statistics netherlands can be done by sending an e-mail to the following address: cvb@cbs.nl. more information about the use of statistics netherlands can be found at http://www.cbs.nl/en-gb/menu/informatie/beleid/zelfonderzoeken/default.htm?languageswitch=on.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>