John Lauritsen
Canada. Health Protection Branch.
L. Huang
Unknown Author
Martin Walker
United States. Congress. House. Committee on Energy and Commerce. Subcommittee on Health and the Environment.
Matthew Irwin
Martin J. Walker
United States. Public Health Service
Anita Rachlis
Celia Farber
United States. Congress. House. Committee on International Relations.
Ian Young
H. C. J. Van Rensburg
United States. Health Resources and Services Administration
United States