Assertion: mediastinum's nerve | /r/HasProperty | superior
Facets:
Source sentences:
text: Content: phrenic nerve, heart, pericardium, ascending aorta, pulmonary trunk, superior vena cava, pericardiacophrenic artery Posterior inferior mediastinum Borders: T4 (superior) - T12 (inferior); posterior aspect of pericardium (anterior) - spine (posterior)