Before revision: on and Drug Resistance]]|date=29 October 2013 | volume = 6 | pages = 133–61 | pmid = 24194646|doi=10.2147/IDR.S12718|pmc=3815002|doi-access=free </ref> Antibiotics are generally not needed.
After revision: on and Drug Resistance]]|date=29 perspective | year = 2009 | publisher = Cabi | location = </ref> Antibiotics are generally not needed.