Assessment of reduction in the volume of liquor amnii.
D000649:Amniocentesis; D000650:Amnion; D000653:Amniotic Fluid; D004724:Endoscopy; D005260:Female; D005332:Fetoscopy; D006801:Humans; D010173:Palpation; D011247:Pregnancy; D011677:Punctures; D011865:Radioisotope Dilution Technique; D013667:Technetium
D013667:Technetium