JM Kim, HJ Chi, KS Chung. Studies on the sex analysis and the reproductive performance of chimera mice. Korean J Animal Reprod. 1989; 13(1):87-92.
BH Chung, HJ Chi, DG Lee, KS Chung. Bisection of bovine embryos and embryo transfer. Korean J Animal Reprod. 1990; 14(2):24-30.
EK Kim, WY Son, HJ Chi, KY Cha. Cryopreservation of human immature follicular oocytes. Korean Fertil Steril. 1992; 19(2):163-168.
KY Cha, BR Do, HJ Chi, TK Yoon. Viability of human follicular oocytes collected from unstimulated ovaries and matured and fertilized in vitro. Reprod Fertil Dev. 1992; 4:695-701.
SJ Lee, HJ Chi, SM Lee, KS Chung. Effect of zona hardening on in vitro fertilization in mouse oocytes. Korean J Animal Reprod. 1993; 17(2):93-101.
HJ Chi, HT Lee, KS Chung. Effects of purine on meiotic maturation of mouse immature oocytes. Korean J Animal Reprod. 1993; 17(2):75-83.
HJ Chi, YH Hwang, HT Lee, KS Chung. Effects of purine on viability of mouse immature oocytes. Korean J Animal Reprod. 1993; 17(2):85-92.
HJ Chi, DH Kim, JJ Koo, KS Chung. Effect of human follicular fluid on meiotic maturation of mouse follicular oocytes in vitro. Korean Fertil Steril. 1996; 23(1):87-94.
DH Kim, HJ Chi, JJ Koo, KS Chung. Effect of human follicular fluid on development of mouse embryos in vitro. Korean Fertil Steril. 1996; 23(1):95-102.
JJ Koo, HJ Chi, DH Kim, JY Kim, SS Chang. Effect of human follicular fluid on improvement of pregnancy rate in ART. Korean Fertil Steril. 1996; 23(1):103-108.
HJ Chi. Studies on the effect of hypoxanthine on nuclear maturation of mammalian oocytes. Korean J Animal Reprod. 1996; 20(4):427-432.
HJ Chi, DH Kim, JJ Koo, SS Chang. The suitability and efficiency of human follicular fluid as a protein supplement in human in vitro fertilization programs. Fertil Steril 1998; 70(5):871-877
DH Kim, HJ Chi, KS Chung, HT Lee. Effects of gonadotropins on in vitro growth and maturation of mouse preantral follicles. Korean J Animal Reprod. 1999; 23(1):53-61.
DH Kim, HG Kang, MK Kim, SW Han, HJ Chi, KS Chung. Developmental capacity of mouse oocytes within preantral follicles cultured in medium supplemented with gonadotropins. Korean J. Animal Reprod. 2000; 24(4):395-406
HJ Chi, JJ Koo, MY Kim, JY Ju, SS Chang, KS Chung. Cryopreservation of human embryos using ethylene glycol in controlled slow freezing. Hum Reprod. 2002; 17(8):2146- 2151
JJ Koo, HJ Chi, DH Kim, JY Ju, JY Kim, JY Lee, YJ Lee, SS Chang. Clinical analysis of 1009 pregnancies in IVF programs. Korean J Ob Gy. 2003; 46:1168-76.
HJ Chi, JJ Koo, SJ Song, JY Lee, SS Chang. Successful fertilization and pregnancy after intracytoplasmic sperm injection and oocyte activation with calcium ionophore in a normozoospermic patient with extremely low fertilization rates in intracytoplasmic sperm injection cycles. Fertil Steril. 2004; 82(2):475-7.
HJ Chi, JH Kim, CS Ryu, JY Lee, JS Park, DY Chung, SY Choi, MH Kim, EK Chun, SI Roh. Protective effect of antioxidant supplementation in sperm-preparation medium against oxidative stress in human spermatozoa. Hum Reprod. 2008; 23(5):1023-1028.
SR Kim, EJ Choi, TY Kim, KH Kwon, NH Song, SK Oh, HJ Chi. 2008. Midtrimester amniocentesis for prenatal diagnosis. J Genet Med 5:131-135.
JH Chun, DR Lee, DW Park, HJ Chi, SH Yoon, IS Kang, KS Lee YM Choi. Standardization of terminology and records in human IVF-ET program of Korea. Korean J Reprod Med. 2008; 35(2):89-98.
HJ Chi, SY Choi, DY Chung. Differentiation of human embryonic stem cells into germ cell and culture condition for single embryonic stem cells dissociated by enzyme. Korean J Reprod Med. 2010; 37(1):13-23. – Prize paper
GY Kim, JS Lee, HJ Chi, JH Kim. Effect of microsurgical varicocelectomy on human sperm nucleus DNA integrity. Korean J Reprod Med 2010; 37(3):245-251.- Prize paper
HJ Chi, JJ Koo, JO Lee, HE Ryu, KR Kim, C Park, SI Roh. Effect of fragment removal on developmental of human fragmented embryos in IVF-ET program. Korean J Reprod Med 2010; 37:339-48.
HJ Chi, DY Chung, SY Choi, JH Kim, GY Kim, JS Lee, HS Lee, MH Kim, SI Roh.. The integrity of human sperm DNA assessed using the neutral comet assay and its relationship to semen parameters and clinical outcomes for the IVF-ET program. Clin Exp Reprod Med 2011;38:10-7.- Prize paper
HJ Chi, JJ Koo, SY Choi, HJ Chung, SI Roh. Fragmentation of embryos is associated with both necrosis and apoptosis. Fertil Steril 2011;96:187-92.
HJ Chi, KW Chun, HJ Son, JH Kim, GY Kim, SI Roh. Effect of genistein administration on the recovery of spermatogenesis in the busulfan-treated rat testis. Clin Exp Reprod Med 2013;40(2):60-66.
HJ Chi, IH Park, HG Sun, JW Kim, KH Lee. Psychological distress and fertility quality of life (FertiQoL) in infertile Korean women: The first validation study of Korean FertiQoL. Clin Exp Reprod Med 2016;43(3):174-180.
HJ Chi, SJ Kwak, SG Kim, YY Kim, JY Park, CS Yoo, IH Park, HG Sun, JW Kim, KH Lee. Efficient isolation of sperm with high DNA integrity and stable chromatin packaging by a combination of density–gradient centrifugation and magnetic– activated cell sorting. Clin Exp Reprod Med 2016;43(4):199–206. – Best Prize paper
HJ Chi, SG Kim, YY Kim, JY Park, CS Yoo, IH Park, HG Sun, JW Kim1, KH Lee, HD Park. ICSI significantly improved the pregnancy rate of the patients with a high sperm DNA fragmentation index. Clin Exp Reprod Med 2017;44(3):132-140.
SG Kim, YY Kim, JY Park, SJ Kwak, CS Yoo, IH Park, HG Sun, JW Kim, KH Lee, HD Park, HJ Chi. Early fragment removal on in vitro fertilization day 2 significantly improves the subsequent development and clinical outcomes of fragmented human embryos. Clin Exp Reprod Med 2018;45(3):122-128.