Table 1 |
|
|
A total of 1,318 airlines were identified through the World Airline Directory |
|
|
Africa |
121 |
|
Caribbean |
42 |
|
Central America |
15 |
|
Central Asia |
38 |
|
Europe |
399 |
|
Far East |
73 |
|
Indian Subcontinent |
58 |
|
Middle East |
92 |
|
North America |
205 |
|
Oceania |
71 |
|
South America |
99 |
|
South East Asia |
105 |
|
|
|
|
Sand et al. Critical Care 2012 16:R42 doi:10.1186/cc11238 |
|
