Per report, [**Date Range 17970**] at OSH were negative for DVT, while CTA chest was positive for PE.
 The patient has a history of PE.
(ROOT (S (PP (IN Per) (NP (NN report))) (, ,) (PRN (-LRB- -LSB-) (NP (SYM **) (NN Date) (NNP Range) (CD 17970)) (SYM **) (-RRB- -RSB-)) (PP (IN at) (NP (NNP OSH))) (VP (VBD were) (ADJP (JJ negative) (PP (IN for) (NP (NNP DVT)))) (, ,) (SBAR (IN while) (S (NP (NNP CTA) (NN chest)) (VP (VBD was) (ADJP (JJ positive) (PP (IN for) (NP (NN PE)))))))) (. .)))
(ROOT (S (NP (DT The) (NN patient)) (VP (VBZ has) (NP (NP (DT a) (NN history)) (PP (IN of) (NP (NN PE))))) (. .)))
( ( Per report ) ( , ( ( -LSB- ( ( ( ** ( Date ( Range 17970 ) ) ) ** ) -RSB- ) ) ( ( at OSH ) ( ( ( ( were ( negative ( for DVT ) ) ) , ) ( while ( ( CTA chest ) ( was ( positive ( for PE ) ) ) ) ) ) . ) ) ) ) )
( ( The patient ) ( ( has ( ( a history ) ( of PE ) ) ) . ) )