Standard screens may not perform as well in these patient subgroups that may represent a considerable part of the ED population.
( ( Standard screens ) ( ( ( may not ) ( ( perform ( as well ) ) ( in ( ( these ( patient subgroups ) ) ( that ( may ( represent ( ( a ( considerable part ) ) ( of ( the ( ED population ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Standard) (NNS screens)) (VP (MD may) (RB not) (VP (VB perform) (ADVP (RB as) (RB well)) (PP (IN in) (NP (NP (DT these) (JJ patient) (NNS subgroups)) (SBAR (WHNP (WDT that)) (S (VP (MD may) (VP (VB represent) (NP (NP (DT a) (JJ considerable) (NN part)) (PP (IN of) (NP (DT the) (NNP ED) (NN population)))))))))))) (. .)))
The subgroups may not perform well in standard screens.
( ( The subgroups ) ( ( ( may not ) ( ( perform well ) ( in ( standard screens ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NNS subgroups)) (VP (MD may) (RB not) (VP (VB perform) (ADVP (RB well)) (PP (IN in) (NP (JJ standard) (NNS screens))))) (. .)))