2184-7770
2184-7770
S2184-77702021000300106
10.36367/ntqr.8.2021.106.113
Portugal
20
06
2021
20
06
2021
8
106
113
[
2014
35
2
2
79-85
]
[
2019
49
9
9
43-45.
]
[
2014
31
3
3
192-5
]
[
2015
88
12
12
40-3
]
[
2015
17-20
]
[
2016
21
5/6
5/6
432-42
]
[
(201
2
26
4
4
307-316.
]
[
2016
16
4
4
1-13.
]
[
The PRISMA Group
2009
6
7
7
]
[
The PRISMA Group
2009
14
]
[
2014
19
5
5
237-240.
]
[
OECD - Organisation for Economic Co-operation and Development
2019
]
[
2015
13
33
33
6-12
]
[
2017
8
3
3
70-74.
]
[
2010
8
1
1
102-106.
]
[
2017
).
8
1
1
13
]
[
2012
12
811
811
]
[
2005
52
5
5
546-553.
]