Lewis, DA; Mitjà, O (februarie 2016). „Haemophilus ducreyi: from sexually transmitted infection to skin ulcer pathogen”. Current Opinion in Infectious Diseases. 29 (1): 52–7. doi:10.1097/QCO.0000000000000226. PMID26658654.
nih.gov
ncbi.nlm.nih.gov
Lewis, DA; Mitjà, O (februarie 2016). „Haemophilus ducreyi: from sexually transmitted infection to skin ulcer pathogen”. Current Opinion in Infectious Diseases. 29 (1): 52–7. doi:10.1097/QCO.0000000000000226. PMID26658654.