0104-4060 0104-4060 S0104-40602015000100025 10.1590/0101-4360-39818 United Kingdom 00 03 2015 00 03 2015 0 55 25 46

40 1 1 39-51 30 1 1 29-41 9 1 1 1-15 48 3-4 3-4 173-85 46 4 4 509-25 32 4 4 315-56 48 3-4 3-4 159-71 18 2 2 23-33