Sympathovagal Imbalance, Decreased Baroreflex Sensitivity and Increased Myocardial Work Stress in Pregnant Women with Risk of Developing Gestational Hypertension: A Preliminary Report - Karthiga, Kuzhanthaivelu; Pal, Gopal Krushna; Velkumary, Subramaniyam (International Journal of Clinical and Experimental Physiology, 2019)