2182-8458
2182-8458
S2182-84582021000200041
10.18089/tms.2021.170204
Portugal
30
06
2021
30
06
2021
17
2
41
46
[
2020
]
[
2020
32
1
1
71-85
]
[
Direção Geral da Saúde
2020
]
[
ECDC
2020
]
[
Ernst & Young
2020
]
[
2020
91
91
102659
]
[
2020
90
90
102636
]
[
2020
]
[
2020
55
55
102183
]
[
2020
]
[
2019
79
79
60-9
]
[
2019
146
146
24-30
]
[
2017
5
1
1
63-77
]
[
2019
146
146
88-93
]
[
2018
]
[
2021
17
2
2
41-6
]
[
Emerald Publishing Limited
2020
10
6
6
674-9
]
[
2014
]
[
2020
37
4
4
260-6
]
[
Turismo de Portugal
2020
]
[
Twilio
2020
]
[
2019
28
2
2
118-44
]
[
2020
29
4
4
429-42
]
[
2014
55
3
3
1-6
]
[
WHO
2020
]
[
World Travel & Tourism Council
2020
]
[
Yahoo
2021
]