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- [7] AMNIOTIC-FLUID ACETYLCHOLINESTERASE IN AVIAN NEURAL-TUBE DEFECTS DEVELOPMENTAL MEDICINE AND CHILD NEUROLOGY, 1980, 22 (02): : 264 - 264
- [10] ROLE OF AMNIOTIC-FLUID, ACETYLCHOLINESTERASE IN SCREENING FOR NEURAL-TUBE DEFECTS SURGICAL NEUROLOGY, 1981, 16 (03): : 237 - 238