( ( Nuclear Medicine ) ( ( involves ( ( ( the use ) ( of ( ( radioactive isotopes ) ( -LRB- ( radioisotopes -RRB- ) ) ) ) ) ( to ( ( ( ( ( ( prevent , ) diagnose ) , ) and ) treat ) disease ) ) ) ) . ) )
(ROOT (S (NP (NNP Nuclear) (NNP Medicine)) (VP (VBZ involves) (S (NP (NP (DT the) (NN use)) (PP (IN of) (NP (NP (JJ radioactive) (NNS isotopes)) (PRN (-LRB- -LRB-) (NP (NNS radioisotopes)) (-RRB- -RRB-))))) (VP (TO to) (VP (VB prevent) (, ,) (VB diagnose) (, ,) (CC and) (VB treat) (NP (NN disease)))))) (. .)))
Nuclear Medicine involves the use of radioactive isotopes (radioisotopes) to prevent, diagnose, and treat disease.
(ROOT (S (NP (DT A) (-LRB- -LRB-) (NN n) (-RRB- -RRB-) (NNS radioisotopes)) (VP (VBZ is) (NP (NP (DT an) (NN isotope)) (SBAR (WHNP (WDT that)) (S (VP (VBZ is) (ADJP (JJ radioactive))))))) (. .)))