Results 301 to 308 of about 3,019,050 (308)
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Risk of neural tube defects in relation to maternal fertility and fertility drug use
Lancet, The, 1990exaly
ANTENATAL DIAGNOSIS OF NEURAL-TUBE DEFECTS USING CEREBROSPINAL-FLUID PROTEINS
Lancet, The, 1974exaly
MATERNAL SERUM-ALPHA-FETOPROTEIN LEVELS AND PRENATAL DIAGNOSIS OF NEURAL-TUBE DEFECTS
Lancet, The, 1974exaly
Principles of electron tubes including grid-controlled tubes, microwave tubes and gas tubes
Proceedings of the IEEE, 1965openaire +1 more source