2Stray-Pedersen,-B Economic evaluation of maternal screening to prevent congenital syphilis Sex-Transm-Dis,1983,10 (4):167~ 172
3Keskin,-A Premarital screening of beta-thalassemia trait in the province of Denizli,Turkey Acta-Haematol,2000,104 (1):31
4el-Shafei,-A -M Maternal mortality in Bahrain with special reference to sickle cell disease Aust-N-Z-J-Obstet-Gynaecol,1988,28 (1):41~44
5McKay,-N-L An economic evaluation of mandatory premarital testing for HIV Inquiry,1991,28 (3):236 ~48
6Berry,-R-J Prevention of neural-tube defects with folic acid in China.China-U.S.Collaborative Project for Neural Tube Defect Prevention N-Engl-J-Med,1999,341 (20):1485 ~ 1490