Ambrosetti, Marco, Walter Ageno, Alberto Calori, Sandro Ferrarese, Annalisa Barosi, Paolo Marchetti, Luciano Salvato, and Andrea Sala. “Fluctuations in Warfarin Dose Response After Heart Valve Surgery: Implications for Cardiac Rehabilitation”. Monaldi Archives for Chest Disease 72, no. 1 (January 21, 2016). Accessed April 25, 2024. https://www.monaldi-archives.org/macd/article/view/340.