Ralph, E. D. (1978). "The bactericidal activity of nitrofurantoin and metronidazole against anaerobic bacteria". The Journal of Antimicrobial Chemotherapy. 4 (2): 177–184. doi:10.1093/jac/4.2.177. PMID25874.
Ralph, E. D. (1978). "The bactericidal activity of nitrofurantoin and metronidazole against anaerobic bacteria". The Journal of Antimicrobial Chemotherapy. 4 (2): 177–184. doi:10.1093/jac/4.2.177. PMID25874.