Meguro, K., R. Kakizaki, T. Hashimoto, T. Yanagisawa, T. Koitabashi, T. Kitamura, and J. Ako. “Early Safety and Efficacy of Sapien 3 20 Mm Transcatheter Heart Valve Implantation in Small Japanese Body Size”. The Heart Surgery Forum, vol. 21, no. 5, Aug. 2018, pp. E341-E344, doi:10.1532/hsf.1918.