<|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 unsuitable for public deposition due to ethical restrictions from the norwegian institute of public health (niph). before data can be released, a full application must be submitted and, in most cases, a contract must be signed with the niph. to apply for statistical data in the form of ready-made tables, this form should be used: http://www.fhi.no/dokumenter/aabd86f88b.doc. additional information about access to data from the norwegian mother and child cohort study are obtained from the niph: www.fhi.no. all enquiries about access to data should be sent to: datatilgang@fhi.no. the persons responsible for handling enquiries sent to this address are anita haugan and kristine vejrup, division of epidemiology, norwegian institute of public health.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>