(S (S (BASENP (DT The) (NN study)) (VP (VBZ has) (VP (VBN called) (SBAR (IN for) (S (BASENP (NNS treatments)) (VP (TO to) (VP (VP (VB take) (BASENP (JJ possible) (NN alcohol) (CC and) (NN drug) (NN use))) (PP (IN into) (BASENP (NN account)))))))))) (PERIOD .))