This is quiz based on a systematic review on the incidence of necrotizing enterocolitis in high-income countries, published a few weeks ago.
The systematic review illustrates the methodological challenges to do international comparisons. Although the clinical message is a bit limited, it is educating to read this review from a methodological viewpoint.
The document is unfortunately not available in full-text. If you do not have access, your local hospital library should be able to get you a copy. Or ask a friend 
Find the paper here: http://fn.bmj.com/content/early/2018/01/09/archdischild-2017-313880
Read the paper and then take the quiz but... please note that you must log in to take this quiz (and all future quizzes).
DISCLAIMER: We do not guarantee that the "correct answer" in a quizz is 100% correct. Never base you clinical decision on a quiz!
