2007-4085 2007-4085 S2007-40852017000500401 10.24245/revmexurol.v77i5.1116 México 00 10 2017 00 10 2017 77 5 401 404

1 2014 83 298-303 2 2007 70 1200-3 3 1993 14 5 5 535-7 4 2008 34 119-21 5 2016 93 112-6 6 2013 40 427-38 7 2014 192 327-35 8 2007 70 3 3 588-9