{{Cite journal| doi = 10.1136/bmjopen-2020-044326| issn = 2044-6055 (Electronic) 2044-6055 (Linking)| volume = 11| issue = 6| pages = –044326| last1 = Brunner| first1 = L.| last2 = Canepa Allen| first2 = M.| last3 = Malebranche| first3 = M.| last4 = Hudon| first4 = C.| last5 = Senn| first5 = N.| last6 = Hugli| first6 = O.| last7 = Vu| first7 = F.| last8 = Akre| first8 = C.| last9 = Bodenmann| first9 = P.| title = Qualitative evaluation of primary care providers' experiences caring for frequent users of the emergency department| journal = BMJ Open| date = 2021-06-27| pmid = 34172545}}