pubmed:affiliation |
Center for Health Quality, Outcomes, and Economic Research, A Health Services Research and Development Field Program, Veterans Administration Medical Center, Bedford, Massachusetts, USA. Selim.Alfredo_J@Boston.VA.gov
|
pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, U.S. Gov't, P.H.S.,
Research Support, U.S. Gov't, Non-P.H.S.
|