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Analysis of Preterm Birth Rate based on Birth Certificate Data: from 1995 to 2003.
Yun Hee Koo, Sun Kwon Kim, Jae Yoon Shim, Hye Sung Won, Pyl Ryang Lee, Ahm Kim
Korean J Obstet Gynecol. 2006;49(9):1855-1865.   Published online September 1, 2006
Clinical evaluation of In-utero fetal shunt operation using basket-shaped catheter: 5-year experience at Asan Medical Center.
Hye Sung Won, Jong Yun Hwang, Sun Kwon Kim, Eui Jung, Jee Young Oh, Jae Yoon Shim, Pyl Ryang Lee, Ahm Kim
Korean J Obstet Gynecol. 2005;48(11):2558-2569.   Published online November 1, 2005
The Effect of Antenatal Corticosteroid on Perinatal Outcomes of Preterm Births.
In Sik Lee, Shin Myung Shin, Ji Ahn Kang, Hye Sung Won, Pyl Ryang Lee, Ahm Kim, Joo Hyun Nam
Korean J Obstet Gynecol. 2000;43(5):863-870.   Published online January 1, 2001
A Case of Bilateral Renal Agenesis Diagnosed by Prenatal Ultrasonography.
Jung Eun Mok, Chun Hwangbo, Hye Sung Won, Hye Kyung Yoo, Pyl Ryang Lee, In Sik Lee, Ahm Kim
Korean J Obstet Gynecol. 1999;42(1):167-170.   Published online January 1, 2001
The Relationship Between Umbilical Coiling Index and Umbilical ArteryDoppler Velocimetry.
Hye Sung Won, Eun Hee Kang, Yeon Pyo Kim, Pyl Ryang Lee, In Sik Lee, Ahm Kim, Jung Eun Mok
Korean J Obstet Gynecol. 1997;40(3):614-618.   Published online January 1, 2001
Correlation of human sperm chromatin heterogeneity with sperm penetration assay.
Pyl Ryang Lee, Myung Geol Pang, Shin Yong Moon, Yoon Seok Chang
Korean J Obstet Gynecol. 1993;36(6):784-799.   Published online January 1, 2001
Fetal umbilical artery flow velocity waveforms and subsequent perinatal outcome.
Bo Hyun Yoon, Pyl Ryang Lee, Wan Yung Kim, Kyung Hee Lee, Hee Chul Syn, Syng Wook Kim
Korean J Obstet Gynecol. 1992;35(2):181-188.   Published online January 1, 2001
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  • Transvaginal ultrasound evaluation of the ureter. Obstet Gynecol Sci. 2022;65:382-383

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