Assertion: pacemaker's lead | /r/HasProperty | required in the atrium
Facets:
Source sentences:
text: The pacing leads are threaded through a subclavian vein into the right heart, with the primary lead placed in the ventricle, and the second lead (if required) in the atrium.
text: The pacing leads are threaded through a subclavian vein into the right heart, with the primary lead placed in the ventricle, and the second lead (if required) in the atrium.