Je Won Park, Jay Sung Joong Hong, Parajuli Niranjan, Wha Soo Koh, Sung Ryeol Park, Mi Ok Lee, Si Kyu Lim, and Yeo Joon Yoon "Analytical Profiling of Biosynthetic Intermediates Involved in the Gentamicin Pathway of Micromonospora echinospora by High-Performance Liquid Chromatography Using Electrospray Ionization Mass Spectrometric Detection" Analytical Chemistry 2007, 79, 4860-4869