pubmed:affiliation |
Department of Epidemiology and Biostatistics, University of California, San Francisco, 185 Berry Street, Lobby 4, Suite 5700, San Francisco, California 94107-1762, USA. aschwartz@psg.ucsf.edu
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't,
Research Support, N.I.H., Extramural,
Research Support, N.I.H., Intramural
|