See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/228780945 Use of Time-based Visual Metaphors in Pregnancy PHR Interface Design Article · January 2006 CITATIONS 2 READS 71 4 authors: Laura Sheble Duke University 15 PUBLICATIONS 28 CITATIONS SEE PROFILE Sanghee Oh Florida State University 60 PUBLICATIONS 514 CITATIONS SEE PROFILE Songphan Choemprayong Chulalongkorn University 11 PUBLICATIONS 64 CITATIONS SEE PROFILE Gary Marchionini University of North Carolina at Chapel Hill 246 PUBLICATIONS 7,108 CITATIONS SEE PROFILE All content following this page was uploaded by Gary Marchionini on 21 May 2014. The user has requested enhancement of the downloaded file. All in-text references underlined in blue are added to the original document and are linked to publications on ResearchGate, letting you access and read them immediately.