A report on the findings appeared in the online journal BMC Medicine.
And that's the VOA Special English Health Report. You can read and listen to our programs at voaspecialenglish.com. I'm Steve Ember.
Includes reporting by Lisa Schlein in Geneva and Jessica Berman in Washington
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2013-11-25
2013-11-25
2013-11-25
2013-11-25
2013-11-25
2013-11-25