Access to raw data
This is an update request for the document The School of Hygiene and Public Health of the Johns Hopkins University, Baltimore, U.S.A
Your paper was deposited in PubMed Central
and appears online at http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=2523688
Before we are able to make any updates or deletions, you must
ensure that the original record at this location is updated/removed.