Between about 9:00 PM (CST) Saturday, Feb. 28th and 2:00 AM Sunday, Mar. 1, ProQuest will be performing site/infrastructure maintenance. All ProQuest databases will be unavailable during those five hours. The down time applies to RefWorks, Nursing & Allied Health Source, and several indexes in the humanities and social sciences made available via TexShare. Thank you for your patience while this essential work is being done.