<|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 the spanish national hospital database (cmbd). cmbd is hosted by the ministry of health social services and equality (msssi). researchers working in public and private institutions can request the databases by filling out, signing and sending the questionnaire available on the msssi web. in the questionnaire the following information is required: 1. researchers information. 2. variables (years, diagnosis, procedures, outcomes and socio-demographic variables). 3. objectives. 4. analysis of patient records. 5. proposed results dissemination. 6. confidentiality commitment. all data used in this investigation was anonymized and de-identified by the msssi before they were provided to the authors. this investigation was presented and approved by the institutional review board of the rey juan carlos university. according to the confidentiality commitment signed with the msssi the authors cannot provide anonymized or de-identified data to other researchers upon request. these researchers must request the data directly to the ministry of health social services and equality. the questionnaire to request data is available at: http://www.msssi.gob.es/estadestudios/estadisticas/estadisticas/estministerio/solicitudcmbddocs/formulario_peticion_datos_cmbd.pdf. the fulfilled questionnaire must be send to: email: icmbd@msssi.es or fax: +34915 96 41 11 or postal mail: instituto de información sanitaria, área de información y estadísticas asistenciales, ministerio de sanidad, servicios sociales e igualdad paseo del prado 1820 28071 madrid, spain.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>