{{Cite journal| doi = 10.1186/1749-8090-7-52| issn = 1749-8090 (Electronic) 1749-8090 (Linking)| volume = 7| issue = 1| pages = 52| last1 = Lindner| first1 = G.| last2 = Zapletal| first2 = B.| last3 = Schwarz| first3 = C.| last4 = Wisser| first4 = W.| last5 = Hiesmayr| first5 = M.| last6 = Lassnigg| first6 = A.| title = Acute hyponatremia after cardioplegia by histidine-tryptophane-ketoglutarate--a retrospective study| journal = J Cardiothorac Surg| date = 2012-06-12| pmid = 22681759}}