Before revision: In 2018, an international team of six paediatric health-care professionals undertook a self-administered test, by swallowing a Lego piece (specifically, a Lego minifigure head) and checking when the pieces appeared.
After revision: Objective testing of passing small objectsIn 2018, an international team of six paediatric health-care professionals undertook a self-administered test, by swallowing a Lego piece (specifically, a Lego minifigure head) and checking when the pieces appeared.