Effects of helicopter service on survival after trauma. Design of study predisposed to type II error.
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Air Ambulances↗
Biomedical subjects
Publications and source records attributed to A D Maclean.
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Two cases of upper oesophageal web in childhood are described. The importance of distending the upper oesophagus with barium for the demonstration of these lesions is stressed.
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Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.