Media type: E-Article Title: Managed Care and the Hospital Market Concentration Contributor: Yamada, Masaki Published: Elsevier BV, 2007 Published in: SSRN Electronic Journal (2007) Language: English DOI: 10.2139/ssrn.1045821 ISSN: 1556-5068 Keywords: Pharmacology (medical) Origination: Footnote: