Snow N, Hull C, Severns J
Aviat Space Environ Med. 1986 Dec;57(12 Pt 1):1176-8.
Helicopter emergency medical services may be served by a variety of medical and paramedical crew mixes. Analysis of 395 flights performed by Metro Life Flight in Cleveland, OH indicates that a physician is necessary 25% of the time, is not necessary 39.7% of the time, and may be necessary 34.7% of the time. The patients in the latter group could only be analyzed retrospectively and were of sufficient severity that the possible benefit of the physician was real but unpredictable. Physician presence was necessary for judgement, skill, or both.
直升机紧急医疗服务可能由各种医疗和辅助医疗人员组合提供。对俄亥俄州克利夫兰市地铁生命飞行队执行的395次飞行任务进行分析表明，25%的情况下需要医生，39.7%的情况下不需要医生，34.7%的情况下可能需要医生。后一组患者只能进行回顾性分析，其病情严重到医生可能带来的实际益处虽真实但无法预测。医生在场对于判断、技能或两者而言都是必要的。
