cohort study

L-Tryptophan and Eosinophilia-Myalgia Syndrome ("EMS")

National epidemic of new syndrome in 1989 quickly traced to a commercial product. Case study addresses surveillance, bias, criteria for causation.

 

Objectives:

Investigation: 
Outbreak
Country: 
United States
Year: 
1990
Author (s): 

Leslie Swygert and Richard Dicker

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