EKG showed T-wave depression in V3-5, with no prior EKG for comparison.
 The patient has a normal EKG. 
(ROOT (S (NP (NNP EKG)) (VP (VBD showed) (NP (NP (JJ T-wave) (NN depression)) (PP (IN in) (NP (NN V3-5)))) (, ,) (PP (IN with) (NP (NP (DT no) (JJ prior) (NNP EKG)) (PP (IN for) (NP (NN comparison)))))) (. .)))
(ROOT (S (NP (DT The) (NN patient)) (VP (VBZ has) (NP (DT a) (JJ normal) (NNP EKG))) (. .)))
( EKG ( ( ( ( showed ( ( T-wave depression ) ( in V3-5 ) ) ) , ) ( with ( ( no ( prior EKG ) ) ( for comparison ) ) ) ) . ) )
( ( The patient ) ( ( has ( a ( normal EKG ) ) ) . ) )