A renal biopsy at this time showed signs of rejection and he received a three day pulse of steroids and subsequently did well.
 The patient has a history of renal failure treated with transplant.
(ROOT (S (S (NP (NP (DT A) (JJ renal) (NN biopsy)) (PP (IN at) (NP (DT this) (NN time)))) (VP (VBD showed) (NP (NP (NNS signs)) (PP (IN of) (NP (NN rejection)))))) (CC and) (S (S (NP (PRP he)) (VP (VBD received) (NP (NP (DT a) (CD three) (NN day) (NN pulse)) (PP (IN of) (NP (NNS steroids)))))) (CC and) (S (ADVP (RB subsequently)) (VP (VBD did) (ADVP (RB well))))) (. .)))
(ROOT (S (NP (DT The) (NN patient)) (VP (VBZ has) (NP (NP (NP (DT a) (NN history)) (PP (IN of) (NP (JJ renal) (NN failure)))) (VP (VBN treated) (PP (IN with) (NP (NN transplant)))))) (. .)))
( ( ( ( ( ( A ( renal biopsy ) ) ( at ( this time ) ) ) ( showed ( signs ( of rejection ) ) ) ) and ) ( ( ( he ( received ( ( a ( three ( day pulse ) ) ) ( of steroids ) ) ) ) and ) ( subsequently ( did well ) ) ) ) . )
( ( The patient ) ( ( has ( ( ( a history ) ( of ( renal failure ) ) ) ( treated ( with transplant ) ) ) ) . ) )