Assertion list for term "become hardened".

Results from Ascent++: 6
heart CapableOfbecome hardened 0.42
conscience CapableOfbecome hardened 0.35
mucus CapableOfbecome hardened 0.28
valve CapableOfbecome hardened 0.26
coronary artery (subgroup of artery) CapableOfbecome hardened 0.20
wall (aspect of artery) CapableOfbecome hardened 0.16