pubmed:affiliation |
Division of General Medicine and Primary Care, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02120-1613, USA. jhaas@partners.org
|
pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, U.S. Gov't, P.H.S.,
Research Support, N.I.H., Extramural
|