Biofilms formed on metallic materials by E. coli and S. epidermidis and their evaluation by crystal violet staining and its reflection. - Takayanagi, M.; Kanematsu, H.; Miura, H.; Kogo, T.; Kawai, R.; Ogawa, A.; Hirai, N.; Kato, T.; Yoshitake, M.; Tanaka, T.; Barry, D. M. (Transactions of the Institute of Metal Finishing, 2022)