title: Defensive blow. MedAssets arm hits Guidant with counterclaim.
authors.forename: Cinda
authors.initials: C
authors.lastname: Becker
mesh_terms: D005249:Fees and Charges; D017754:Group Purchasing / Q000191:economics*; D019981:Health Care Sector / Q000331:legislation & jurisprudence*; D040541:Marketing; D010138:Pacemaker, Artificial / Q000191:economics*; D014481:United States