Assertion: mediastinum's structure | /r/RelatedTo | lung
Facets:
Source sentences:
text: The hilum of the lung is found on the medial aspect of each lung, and it is the only site of entrance or exit of structures associated with the lungs.
text: The hilum of the lung is found on the medial aspect of each lung, and it is the only site of entrance or exit of structures associated with the lungs.