The study utilized the Vaccine Safety Datalink and included children who received the first dose of a measles-containing vaccine between 12 and 23 months old during the study period of January 1, 2003 to September 20, 2015.
The study utilized the Vaccine Safety Datalink and included children who received the first dose of a measles-containing vaccine between 12 and 23 months old during the study period of January 1, 2003 to September 20, 2015.