Gastric acidity in the first day of life.
D000653:Amniotic Fluid; D002585:Cesarean Section; D005260:Female; D005745:Gastric Acidity Determination; D005750:Gastric Juice; D005751:Gastric Lavage; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007231:Infant, Newborn; D007744:Obstetric Labor Complications; D011247:Pregnancy