1981-416x 1981-416x S1981-416x2017000200337 10.7213/1981-416x.17.052.ds02 Brazil Canada 00 04 2017 00 04 2017 17 52 337 355

2001 41 41 221 2007 3 1993 1986 15 3-4 3-4 267-82 1989 12 5 5 25-6 2016 2013 2002 2004 3-14 2015 1970 2016 2004