1.
Korean Journal of Obstetrics and Gynecology
;
: 2107-2116, 1993.
Article
in Korean
| WPRIM
| ID: wpr-22538
2.
Korean Journal of Obstetrics and Gynecology
;
: 1544-1550, 1992.
Article
in Korean
| WPRIM
| ID: wpr-172007