( It ( ( ( occurred ( in ( 38 women ) ) ) ( with ( ( 17 % ) ( ( ( having ( blood clots ) ) ( ( travelling ( to ( the lung ) ) ) ( compared ( to ( the ( placebo group ) ) ) ) ) ) ( where ( ( ( five women ) ( had ( ( ( blood clots ) and ) three ) ) ) ( had ( ( ( lung emboli ) or ) involvement ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBD occurred) (PP (IN in) (NP (CD 38) (NNS women))) (PP (IN with) (NP (NP (CD 17) (NN %)) (VP (VBG having) (NP (NN blood) (NNS clots)) (S (VP (VBG travelling) (PP (TO to) (NP (DT the) (NN lung))) (PP (VBN compared) (PP (TO to) (NP (DT the) (NN placebo) (NN group)))))) (SBAR (WHADVP (WRB where)) (S (NP (NP (CD five) (NNS women)) (VP (VBN had) (NP (NP (NN blood) (NNS clots)) (CC and) (NP (CD three))))) (VP (VBD had) (NP (NP (NN lung) (NNS emboli)) (CC or) (NP (NN involvement)))))))))) (. .)))
It occurred in 38 women with 17% having blood clots travelling to the lung compared to the placebo group where five women had blood clots and three had lung emboli or involvement.
(ROOT (S (NP (CD Three) (NNS steps)) (VP (VBP are) (VP (VBN involved) (PP (IN in) (NP (NN blood) (NN clotting))))) (. .)))
Three steps are involved in blood clotting.