Figure 5. Decision Tree on Stretcher and Extra Seats

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Decision Tree on Stretcher and Extra Seats
1.	Can sit upright for 30 min?
a.	If yes, can be in non-horizontal position for the whole flight?
i.	If yes, then is extra space needed for interventions/equipment?
1.	If yes, extra seat.
2.	If no, economy seat.
ii.	If no, are 3 flat seats available?
1.	If yes, 3 seats.
2.	If no, is business seat close to horizontal?
a.	If yes, business class
b.	If no, stretcher
b.	If no, then stretcher.