Therefore,
So,
Thus,
Hence,
Consequently,
Because of this,
For this reason,
As a consequence,
As a result,


                 one effect of
                 one result of
                 one consequence of
                 caused by
                 due to
                 because of


                                   results in
                                   leads to
                                   produces
                                   causes
                                   is the cause of
                                   gives rise to
                                   brings about


is due to
may be due to

                 results from
                 arises from


                                   as a result of which
                                   as a consequence of which
                                   with the result that

Owing to