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\bibitem{537} Cristina Ca{\~n}ero, Nikolaos Thomos, George A. Triantafyllid, George C. Litos, \& Michael G. Strintzis. (2005). Mobile Tele-echography: User Interface Design. \textit{IEEE Transactions on Information Technology in Biomedicine, 9(1):44{\textendash}49  (IF: 1.376)}.

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