{{Cite journal| doi = 10.1016/j.cmi.2014.11.016| issn = 1469-0691 (Electronic) 1198-743X (Linking)| volume = 21| issue = 4| pages = 344–1-11| last1 = Stewardson| first1 = A. J.| last2 = Gaia| first2 = N.| last3 = Francois| first3 = P.| last4 = Malhotra-Kumar| first4 = S.| last5 = Delemont| first5 = C.| last6 = Martinez de Tejada| first6 = B.| last7 = Schrenzel| first7 = J.| last8 = Harbarth| first8 = S.| last9 = Lazarevic| first9 = V.| last10 = Saturn| first10 = W. P.| last11 = Groups| first11 = W. P. Study| title = Collateral damage from oral ciprofloxacin versus nitrofurantoin in outpatients with urinary tract infections: a culture-free analysis of gut microbiota| journal = Clin Microbiol Infect| date = 2015-02-07| pmid = 25658522}}