The folded deckchair position: the problem of long-haul flights.
Murphy
J F
JF
D000401:Aircraft; D006801:Humans; D011655:Pulmonary Embolism / Q000209:etiology* / Q000517:prevention & control; D012307:Risk Factors; D014195:Travel; D020246:Venous Thrombosis / Q000209:etiology* / Q000517:prevention & control