Bilateral carotid stenosis 80 to 90% right greater then left.
 The patient has bilateral carotid artery stenosis.
(ROOT (NP (NP (NP (JJ Bilateral) (NN carotid) (NN stenosis) (CD 80)) (PP (TO to) (NP (CD 90) (NN %))) (NP (ADJP (RB right) (JJR greater)) (S (ADVP (RB then)) (VP (VBD left))))) (. .)))
(ROOT (S (NP (DT The) (NN patient)) (VP (VBZ has) (NP (JJ bilateral) (NN carotid) (NN artery) (NN stenosis))) (. .)))
( ( ( ( Bilateral ( carotid ( stenosis 80 ) ) ) ( to ( 90 % ) ) ) ( ( right greater ) ( then left ) ) ) . )
( ( The patient ) ( ( has ( bilateral ( carotid ( artery stenosis ) ) ) ) . ) )