title: Retraction: Imazato, T., Shiokawa, A., Kurose, Y., Katou, Y., Kishikawa, N., Ohyama, K., Ali, M. F. B., Ueki, Y., Maehata, E. and Kuroda, N. (2014), Determination of 4-hydroxy-2-nonenal in serum by high-performance liquid chromatography with fluorescence detection after pre-column derivatization using 4-(N,N-dimethylaminosulfonyl)-7-hydrazino-2, 1,3-benzoxadiazole. Biomed. Chromatogr., 28: 858–861. doi: 10.1002/bmc.3166.