1. Cardiac size and performance during pregnancy estimated with echocardiography;Rubler;Am J Cardiol,1977
2. Left ventricular size, output and structure during guinea pig pregnancy;Morton;Am J Physiol,1984
3. Vascular pressure-volume relationships in pregnant and estrogen treated guinea pigs;Davis;Am J Physiol,1989
4. Cardiac output and uterine blood flow in the pregnant ewe;Clapp;Am J Obstet Gynecol,1978
5. Serial study of factors influencing changes in cardiac output during human pregnancy;Robson;Am J Physiol,1989