TABLE 1.

Eligibility criteria.

Inclusion criteria	Exclusion criteria
Male or female participants aged from 1 to <6 months and from 6 to <18 years	Impairment of swallowing solids due to illness
Ability to swallow	Lactose-intolerance
Willingness and capability of participants and participants’ parents or legal guardians to comply with examination procedures	Premedication and concomitant medication that caused nausea, fatigue, or palsy
Participants and/or participants’ parents or legal guardians capable of providing written informed consent and assent where possible	Children in the post-operative period who were yet to commence regular oral feeding
	Children, who had eaten 1 h before examination and who afterwards felt sick because of the food