Study of Cardiovascular Parameters and Heart Rate Variability (Frequency Domain Analysis) In 1St Trimester of Normal Pregnant Women and Pregnant Women with Risk Factors for Pih in Western Rajasthan. ijop [Internet]. 2022 Jan. 4 [cited 2026 May 20];10(1):22-8. Available from: https://ijop.net/index.php/ijop/article/view/3211