Health officials have called off plans for a study examining a controversial type of treatment that some autism activists have touted as alternative medical therapy for children with the condition.
The National Institute of Mental Health, or NIMH, part of the U.S. National Institutes of Health, said in a statement on Wednesday that it has canceled a study aimed at assessing the effectiveness of a treatment called chelation.
The U.S. government has given an ultimatum to the international group that helps provide vaccines to...
