https://www.selleckchem.com/pr....oducts/nicotinamide-
To establish a normal reference range for automated fractional shortening (Auto FS) in normal singleton fetuses measured at multiple centers. This study was conducted from May 2017 to March 2019. It was undertaken on normal singleton fetuses. First, a four-chamber view of the fetal heart was recorded in the B-mode. Then, the region of interest was set on the edge of the ventricular septum and on the edge of the ventricular muscle at a point one-third away from the atrioventricular valve and toward the cardiac apex
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