Metabolonote: a wiki-based database for managing hierarchical metadata of metabolome analyses - Ara, T; Enomoto, M; Arita, M; Ikeda, C; Kera, K; Yamada, M; Nishioka, T; Ikeda, T; Nihei, Y; Shibata, D; Kanaya, S; Sakurai, N (Front Bioeng Biotechnol, 2015)