You are reading a paper in the journal Vaccine that analyzed and combined the results from five observational studies involving over one million children and another five studies that compared children with autism to children without autism (a total of nearly 10,000 children).The paper you are reading is best recognized as a

Question

Quizplus · Accepted Answer

The paper being described is a meta-analysis, as it combines and analyzes data from multiple studies in order to reach a conclusion. It is also a primary literature source, as it presents original research findings rather than summarizing existing research (which would be considered secondary literature). This distinguishes it from cohort and case-control studies, which focus on examining associations between specific exposure and outcome variables within a single study population.

You Are Reading a Paper in the Journal Vaccine That