Park, S., Lee, W., Shim, W. H., Cho, S. Y., Tahk, S. J., & Kim, S. S. (1991). Percutaneous Mitral Valvuloplasty Using the Double Balloon Technique: Immediate Results and Determinant Factors of Increasing Mitral Regurgitation. Korean J Intern Med.

Park, Seung-Jung, Woong-Ku Lee, Won Heum Shim, Seung Yun Cho, Seung Jea Tahk, a Sung Soon Kim. "Percutaneous Mitral Valvuloplasty Using the Double Balloon Technique: Immediate Results and Determinant Factors of Increasing Mitral Regurgitation." Korean J Intern Med 1991.

Park, Seung-Jung, et al. "Percutaneous Mitral Valvuloplasty Using the Double Balloon Technique: Immediate Results and Determinant Factors of Increasing Mitral Regurgitation." Korean J Intern Med 1991.