(S (S (NP (BASENP (DT A) (NN study)) (VP (VP (VBN published) (PP (IN in) (BASENP (DT the) (NNP British) (NNP Medical) (NNP Journal)))) (PP (IN in) (NP (BASENP (NNP June)) (BASENP (NN 2004)))))) (VP (VP (VP (VBD followed) (BASENP (NN 34,439) (JJ male) (NNS doctors))) (PP (IN since) (BASENP (NN 1951)))) (CC and) (VP (VBD showed) (SBAR (IN that) (S (BASENP (NNS smokers)) (VP (VBD died) (ADVP (PP (IN on) (BASENP (NN average))) (ADVP (ADVP (BASENP (NN 10) (NNS years)) (RBR earlier)) (PP (IN than) (BASENP (NNS non-smokers))))))))))) (PERIOD .))