1.
Korean Journal of Obstetrics and Gynecology
;
: 167-172, 1993.
Article
in Korean
| WPRIM
| ID: wpr-166273
2.
Korean Journal of Obstetrics and Gynecology
;
: 442-445, 1992.
Article
in Korean
| WPRIM
| ID: wpr-212180
3.
Korean Journal of Obstetrics and Gynecology
;
: 488-493, 1991.
Article
in Korean
| WPRIM
| ID: wpr-59895