Correspondence
Daichi Takagi, MD, PhD, Department of Cardiovascular surgery, Akita University Graduate School of Medicine, Hondo 1-1-1, Akita, 010-8543, Japan.
Tel: +81-18-884-6135
Fax: +81-18-836-2625
E-mail: daichi0129@gmail.com
Prior Presentation: None.
Funding: None.
Conflict of Interests: None.