This dataset is held in the Edinburgh DataVault, accessible only to authorised University of Edinburgh staff. To request access to the data please contact the Depositor, or in their absence the Contact Person or Data Manager, named on this page. Further information on retrieving data from the DataVault can be found at: http://www.ed.ac.uk/information-services/research-support/research-data-service/sharing-preserving-data/datavault/interim-datavault/retrieve-data.