( ( ( Second and ) ( third ( trimester infections ) ) ) ( ( ( will frequently ) ( lead ( to ( fetal hydrops ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Second)) (CC and) (NP (JJ third) (NN trimester) (NNS infections))) (VP (MD will) (ADVP (RB frequently)) (VP (VB lead) (PP (TO to) (NP (JJ fetal) (NNS hydrops))))) (. .)))
Second and third trimester infections will frequently lead to fetal hydrops.
(ROOT (S (NP (DT The) (JJ third) (NN trimester)) (VP (VBZ is) (VP (VBN associated) (PP (IN with) (NP (JJ rapid) (JJ fetal) (NN growth))))) (. .)))