44 Do organisational change in out-of-hour service influence on the use of helicopter emergency medical service? an observational study of a natural experiment
2018 ◽
Vol 22
(4)
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pp. 406-413
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2017 ◽
Vol 25
(1)
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2017 ◽
Vol 16
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pp. 17-18
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2017 ◽
Vol 10
(4)
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pp. 224
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