{{Cite journal| doi = 10.1007/s11739-021-02781-1| issn = 1970-9366 (Electronic) 1828-0447 (Print) 1828-0447 (Linking)| volume = 17| issue = 1| pages = 113–122| last1 = Leidi| first1 = A.| last2 = Saudan| first2 = A.| last3 = Soret| first3 = G.| last4 = Rouyer| first4 = F.| last5 = Marti| first5 = C.| last6 = Stirnemann| first6 = J.| last7 = Reny| first7 = J. L.| last8 = Grosgurin| first8 = O.| title = Confidence and use of physical examination and point-of-care ultrasonography for detection of abdominal or pleural free fluid. A cross-sectional survey| journal = Intern Emerg Med| date = 2021-06-21| pmid = 34148178}}