Advancements in Noninvasive Volatile Organic Compound Detection: Integrating Stirling Cooling Preconcentration with GC-FID/MS for Quantitative Breath Analysis - Xu, Qiongdan; Hu, Xiaoyu; Zhong, Lei; Wang, Zelin; Zhao, Huayong; Fu, Jia; Cao, Dongdong; Liu, Liu; Zhang, Yan; Lang, Jianlei (ACS omega, 2025)