Journal of Clinical Laboratory Analysis 28: 386–390 (2014) Rapid and Sensitive Headspace Gas Chromatography–Mass Spectrometry Method for the Analysis of Ethanol in the Whole Blood Hong-tao Xiao,∗ Lin He,∗ Rong-sheng Tong,∗ Ji-ying Yu, Lu Chen, Jing Zou, Jin-qi Li,