共 50 条
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- [7] A DECLINING INCIDENCE OF NEURAL-TUBE DEFECTS IN THE UK ZEITSCHRIFT FUR KINDERCHIRURGIE-SURGERY IN INFANCY AND CHILDHOOD, 1989, 44 : 51 - 51
- [10] SOME INTERNATIONAL TRENDS IN THE INCIDENCE OF NEURAL-TUBE DEFECTS COMMUNITY HEALTH STUDIES, 1983, 7 (01): : 60 - 66