Assertion: pulmonary circulation's vein | /r/CapableOf | remain separate
Facets:
value: in some people
type: OTHER
value: of merging into two veins
type: OTHER
Source sentences:
text: In some people, the three right pulmonary veins remain separate instead of merging into two veins, resulting in a total of five pulmonary veins (this is referred to as a single accessory right middle pulmonary vein and is present in roughly 10% of people).