Ryu, J., Kim, B., Kim, S., Yang, S. H., Choi, M. H., & Ahn, H. S. (2003). Ultrasound Evaluation of Normal and Abnormal Fetuses: Comparison of Conventional, Tissue Harmonic, and Pulse-Inversion Harmonic Imaging Techniques. The Korean Radiological Society.

Ryu, Jeong-ah, Bohyun Kim, Sooah Kim, Soon Ha Yang, Moon Hae Choi, and Hyeong Sik Ahn. Ultrasound Evaluation of Normal and Abnormal Fetuses: Comparison of Conventional, Tissue Harmonic, and Pulse-Inversion Harmonic Imaging Techniques. The Korean Radiological Society, 2003.

Ryu, Jeong-ah, et al. Ultrasound Evaluation of Normal and Abnormal Fetuses: Comparison of Conventional, Tissue Harmonic, and Pulse-Inversion Harmonic Imaging Techniques. The Korean Radiological Society, 2003.