1.
Korean Journal of Perinatology
;
: 72-76, 1992.
Article
in Korean
| WPRIM
| ID: wpr-165451
2.
Korean Journal of Obstetrics and Gynecology
;
: 1441-1447, 1992.
Article
in Korean
| WPRIM
| ID: wpr-214203
3.
Korean Journal of Obstetrics and Gynecology
;
: 1038-1044, 1992.
Article
in Korean
| WPRIM
| ID: wpr-204797