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Studies on Mammalian Fetuses in vitro During
Adaptations of Marsupial Pouch Young for Extra
Experimental Techniques in Fetal and Placental
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activity American animals appear artery artificial babies become birth blood blood flow body cannula carbon dioxide catheter cause cells changes circulation clinical concentration continuous culture disease early effect embryos et al evidence Experimental experiments explanted extracorporeal fetal fetus fetuses flow fluid function further gestation gestational age glucose growth heart heat human important increase infant isolated Journal kangaroo lambs less limited loss lung maintained marsupial maternal measure medium membrane metabolism method milk neonatal newborn Nixon normal observations obtained occurs organ oxygen perfusion period Physiology placenta plasma possible pouch premature present pressure problems production protein pulmonary pump recently respiratory response saline serum sheep shown similar stages studies Table technique temperature term tissue transfer tube umbilical usually vessels volume weeks weight yolk-sac young