[Prenatal diagnosis of central nervous system defects]

MeSH terms

• Acetylcholinesterase / analysis
• Adult
• Amniocentesis*
• Amniotic Fluid / analysis
• Copper / analysis
• Female
• Fibrin Fibrinogen Degradation Products / analysis
• Humans
• Magnesium / analysis
• Neural Tube Defects / diagnosis*
• Pregnancy
• Pregnancy Trimester, Second
• Zinc / analysis
• alpha-Fetoproteins / analysis