If the data are restricted to authorized users, users can order these collections through their Official Representatives. If the data are freely available to the public, users can browse the files online or download the data free of charge. This number is independent of any other tracking number that may be attached to a collection, such as a grant number from a particular funding agency.
Some data collections are also available on CD-ROM or diskette.
Click on 'CD-ROM' or 'Diskette' for information on how to order the data collection on removable media. A description of the data collection's subject matter or intellectual content, including an overview of the study's methodology and sampling, and other important items of information about the study. These abstracts follow a strict format, called a template, which insures that standard information is recorded for each study. See also Abstract File . This file provides important notes or special characteristics of a specific collection.