Table 1

Results of literature search

Titles identified

2,556

Remaining after exclusion of case reports and articles pertaining to vaccines, antiviral medications other medical countermeasures

506

Remaining after title and abstract review

319

Remaining after screen for relevance

168

Aledort et al. BMC Public Health 2007 7:208   doi:10.1186/1471-2458-7-208