<|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 imaging data and subject meta-data from the massachusetts general hospital dataset are freely available as part of the mind clinical imaging consortium data collection at http://coins.mrn.org/dataexchange. connectivity data derived from the imaging data has been uploaded to the dryad database and can be accessed at http://dx.doi.org/10.5061/dryad.88q04. data from the rotterdam scan study can be obtained upon request. requests should be directed towards the management team of the rotterdam study (secretariat.epi@erasmusmc.nl), which has a protocol for approving data requests. because of restrictions based on privacy regulations and informed consent of the participants, data cannot be made freely available in a public repository. the rotterdam study has been approved by the medical ethics committee according to the wet bevolkingsonderzoek ergo (population study act rotterdam study), executed by the ministry of health, welfare and sports of the netherlands.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>