He stated at that time that he had been unable to move for 2 days [**12-21**] his back pain and was not eating or drinking.
 the patient has back pain
(ROOT (S (NP (PRP He)) (VP (VBD stated) (PP (IN at) (NP (DT that) (NN time))) (SBAR (IN that) (S (NP (PRP he)) (VP (VBD had) (VP (VBN been) (ADJP (JJ unable) (S (VP (TO to) (VP (VB move) (PP (IN for) (NP (CD 2) (NNS days))))))) (PRN (-LRB- -LSB-) (NP (SYM **) (CD 12-21) (X (SYM **)) (PP (-RRB- -RSB-) (NP (NP (PRP$ his) (JJ back) (NN pain)) (CC and) (VP (VBD was) (RB not) (NP (JJ eating) (CC or) (NP (NN drinking))))))))))))) (. .)))
(ROOT (S (NP (DT the) (NN patient)) (VP (VBZ has) (ADVP (RB back)) (NP (NN pain)))))
( He ( ( ( stated ( at ( that time ) ) ) ( that ( he ( had ( ( been ( unable ( to ( move ( for ( 2 days ) ) ) ) ) ) ( -LSB- ( ** ( ( 12-21 ** ) ( -RSB- ( ( ( his ( back pain ) ) and ) ( ( was not ) ( ( eating or ) drinking ) ) ) ) ) ) ) ) ) ) ) ) . ) )
( ( the patient ) ( ( has back ) pain ) )