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\bibitem{1546} Aura Hernandez-Sabate, Debora Gil, Jaume Garcia, \& Enric Marti. (2011). Image-based Cardiac Phase Retrieval in Intravascular Ultrasound Sequences. \textit{T-UFFC - IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control}, \textit{58}(1), 60--72.

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