http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Title from title screen (viewed on Mar. 13, 2009).
Mode of access: Internet from the NEI web site. Address as of 3/13/09: http://www.nei.nih.gov/health/glaucoma/webGLAUC.pdf ; current access available via PURL.