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?
   1. If yes, can be in non-horizontal position for the whole flight?
      1. If yes, then is extra space needed for interventions/equipment?
         1. If yes, extra seat.
         2. If no, economy seat.
      2. If no, are 3 flat seats available?
         1. If yes, 3 seats.
         2. If no, is business seat close to horizontal?
            1. If yes, business class
            2. If no, stretcher
   2. If no, then stretcher.