1.
Korean Journal of Obstetrics and Gynecology
;
: 1561-1570, 1993.
Article
in Korean
| WPRIM
| ID: wpr-123351
2.
Korean Journal of Obstetrics and Gynecology
;
: 3946-3952, 1993.
Article
in Korean
| WPRIM
| ID: wpr-9980