<n0:ComplexDefinition xmlns:n0="http://ncicb.nci.nih.gov/xml/owl/EVS/ComplexProperties.xsd#"><n0:def-definition>An eating disorder most commonly observed in infants characterized by the repeated regurgitation and rechewing of food for a period of at least one month; this behavior is not associated with a gastrointestinal or other medical reason.</n0:def-definition><n0:def-source>NCI</n0:def-source></n0:ComplexDefinition>