pubmed:affiliation |
Division of General Internal Medicine, Center for Research on Health Care, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA. rollmanbl@upmc.edu
|
pubmed:publicationType |
Journal Article,
Comparative Study,
Randomized Controlled Trial,
Research Support, Non-U.S. Gov't,
Multicenter Study,
Research Support, N.I.H., Extramural
|