1665-2681
1665-2681
S1665-26812017000200279
10.5604/16652681.1231587
USA
USA
00
04
2017
00
04
2017
16
2
279
284
[
1987
7
122-8
]
[
1949
222
117-27
]
[
1993
67
439-62
]
[
1987
93
234-41
]
[
53
397-417
]
[
2009
49
2087-107
]
[
2006
355
e21
]
[
2009
7
906-9
]
[
2011
63
^s11
^s11
11
S240-52
]
[
1978
239
628-30
]
[
1996
91
1731-3
]
[
2001
33
464-70
]