title: The new butterfly technique-a sophisticated repair method for posterior leaflet prolapse.
authors: Division of Cardiovascular Surgery, Department of Surgery, Shiga University of Medical Science, Seta Tsukinowa, Otsu, Shiga, Japan.
authors: Tohru
authors: T
authors: Asai
authors: Division of Cardiovascular Surgery, Department of Surgery, Shiga University of Medical Science, Seta Tsukinowa, Otsu, Shiga, Japan.
authors: Tomoaki
authors: T
authors: Suzuki
authors: Division of Cardiovascular Surgery, Department of Surgery, Shiga University of Medical Science, Seta Tsukinowa, Otsu, Shiga, Japan.
authors: Takeshi
authors: T
authors: Kinoshita