1. Integrated Metabolomics Research Group, Western Seoul Center, Korea Basic Science Institute; Seoul 120-140 Republic of Korea
2. Department of Chemistry; Sungkyunkwan University (SKKU); Suwon 440-746 Republic of Korea
3. Mass Spectrometry & Advanced Instrumentation Group; Ochang Headquters, Korea Basic Science Institute; Cheongju 363-886 Republic of Korea
4. Department of Chemistry & Nanoscience; Ewha Womans University; Seoul 120-750 Republic of Korea