Started Rituxan for 4 weeks in 5/[**3492**].
 History of cancer
(ROOT (S (VP (VBN Started) (NP (NP (NNP Rituxan)) (PP (IN for) (NP (CD 4) (NNS weeks)))) (PP (IN in) (NP (CD 5) (: /) (PRN (-LRB- -LSB-) (NP (SYM **) (CD 3492) (X (SYM **)) (-RRB- -RSB-)))))) (. .)))
(ROOT (NP (NP (NN History)) (PP (IN of) (NP (NN cancer)))))
( ( ( Started ( Rituxan ( for ( 4 weeks ) ) ) ) ( in ( 5 ( / ( -LSB- ( ** ( ( 3492 ** ) -RSB- ) ) ) ) ) ) ) . )
( History ( of cancer ) )