( Nonetheless ( , ( ( cardiovascular diseases ) ( ( ( ( remain ( ( a ( leading cause ) ) ( of ( death ( in ( the ( United States ) ) ) ) ) ) ) , ) ( with ( ( ( ( heart disease ) ( the ( ( No. 1 ) killer ) ) ) and ) ( strokes ( No. 3 ) ) ) ) ) . ) ) ) )
(ROOT (S (ADVP (RB Nonetheless)) (, ,) (NP (JJ cardiovascular) (NNS diseases)) (VP (VBP remain) (NP (NP (DT a) (VBG leading) (NN cause)) (PP (IN of) (NP (NP (NN death)) (PP (IN in) (NP (DT the) (NNP United) (NNPS States)))))) (, ,) (PP (IN with) (NP (NP (NP (NN heart) (NN disease)) (NP (DT the) (ADJP (NN No.) (CD 1)) (NN killer))) (CC and) (NP (NP (NNS strokes)) (ADJP (NN No.) (CD 3)))))) (. .)))
Nonetheless, cardiovascular diseases remain a leading cause of death in the United States, with heart disease the No. 1 killer and strokes No. 3.
(ROOT (S (NP (NNP Heart) (NN disease)) (VP (VBZ is) (NP (NP (DT the) (VBG leading) (NN cause)) (PP (IN of) (NP (NN death))) (PP (IN in) (NP (DT the) (VBN united) (NNS states))))) (. .)))