title: The great consolidator. Healtheon/WebMD keeps on buying in its bid to dominate online health information.
authors.forename: J
authors.initials: J
authors.lastname: Morrissey
mesh_terms: D003132:Commerce / Q000639:trends; D005845:Georgia; D019981:Health Care Sector / Q000639:trends*; D020407:Internet / Q000191:economics*; D009862:Online Systems; D011216:Practice Management, Medical; D014481:United States