Relationship Between Quality of Life Instruments, Health State Utilities, and Willingness to Pay in Patients with Asthma.
( ( ( Relationship ( Between ( Quality ( of ( ( ( ( ( ( Life Instruments ) , ) ( Health ( State Utilities ) ) ) , ) and ) Willingness ) ) ) ) ) ( to ( Pay ( in ( Patients ( with Asthma ) ) ) ) ) ) . )
(ROOT (S (VP (VB Relationship) (PP (IN Between) (NP (NP (NNP Quality)) (PP (IN of) (NP (NP (NNP Life) (NNP Instruments)) (, ,) (NP (NNP Health) (NNP State) (NNPS Utilities)) (, ,) (CC and) (NP (NNP Willingness)))))) (S (VP (TO to) (VP (VB Pay) (PP (IN in) (NP (NP (NNS Patients)) (PP (IN with) (NP (NNP Asthma))))))))) (. .)))
Asthma patients have a difficult time with health. 
( ( Asthma patients ) ( ( have ( ( a ( difficult time ) ) ( with health ) ) ) . ) )
(ROOT (S (NP (NNP Asthma) (NNS patients)) (VP (VBP have) (NP (NP (DT a) (JJ difficult) (NN time)) (PP (IN with) (NP (NN health))))) (. .)))