The Lancet  
Jun 23, 2012  Volume 379  Number 9834  p2313 – 2400
http://www.thelancet.com/journals/lancet/issue/current

World Report
Thiomersal vaccines debate continues ahead of UN meeting
Nayanah Siva

Experts are meeting for the fourth time at the end of June to discuss a global treaty on mercury. But such an agreement could hinder vaccination programmes worldwide. Nayanah Siva reports.