Investigation of the relationship between uterine artery Doppler diastolic notching and serum apelin-13 and apelin-36 concentrations between the 11th and 14th weeks of pregnancy: a case-control study

although the number of participants was too small to draw a definitive conclusion, no significant relationship between diastolic notching or increased resistance in the uterine artery and serum apelin-13 and apelin-36 concentrations could be detected.