|
pubmed:affiliation |
Department of International Health, Bloomberg School of Public Health, The Johns Hopkins University, 615 N. Wolfe Street, Baltimore, MD 21205-2103, USA. jkatz@jhsph.edu
|
|
pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, Non-P.H.S.,
Research Support, Non-U.S. Gov't,
Research Support, N.I.H., Extramural
|
