作者单位：
School of Public Health, University of Cape Town, South Africa, Emergency Medical Services, Cape
[1]
Department of Biostatistics, University of Washington, Seattle, United States
[2]
Division of Emergency Medicine, University of Cape Town, South Africa
[3]
Occupational and Environmental Health Research Unit, University of Cape Town, South Africa
[4]
发布时间
2013-11-20
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