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- Published online January 26, 2012.
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- *Resource Economics and Center for Public Policy and Administration. University of Massachusetts Amherst. Amherst, USA
- #Swiss Tropical and Public Health Institute and University of Basel. Basel, Switzerland
- ¶Sonoma Technology, Inc. Petaluma, California
- +Keck School of Medicine, University of Southern California. Los Angeles, USA
- S.J. Brandt, Resource Economics and Center for Public Policy and Administration, 205 Stockbridge Hall, University of Massachusetts Amherst, E-mail: Brandt{at}isenberg.umass.edu