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What is Noninvasive prenatal testing (NIPT) and explain in detail?
Ref. The Short Textbook of Obstetrics. Page. 778
 
NON INVASIVE PRENATAL TESTING

Targeted ultrasonography
Fetal blood cells in maternal blood
Double marker and triple screening
Maternal serum estriol

INVASIVE PRENATAL TESTING

Amniocentesis
Chronic villus sampling
Cordocentesis