concepts
type: Collection
type: ConceptGroup
member: nausea and vomiting

nausea and vomiting
type: Concept
broader: systemic diseases
definition: Nausea and vomiting are symptoms rather than diseases. They can result from many different conditions, such as infection, food poisoning, motion sickness, overeating, intestinal obstruction, brain injuries, appendicitis, and migraine headaches. [Source: Encyclopedia of Global Health; Nausea and Vomiting]

systemic diseases
type: Concept
narrower: nausea and vomiting