By downloading or consulting data from this website, the visitor acknowledges that he/she agrees to the following:
If data are extracted from this website for secondary analysis resulting in a publication, the website should be cited as follows:
If any data constitutes a substantial proportion of the records used in secondary analyses (i.e. more than 25% of the data are derived from this source, or the data are essential to arrive at the conclusion of the analysis), the authors/managers of the database should be contacted. It may be useful to contact us directly in case there are additional data that may strengthen the analysis or there are features of the data that are important to consider but may not have been apparent from the metadata.
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Page generated on 2016-12-03 08:27:12 - contact: Les Watling