Studies on closure of the ductus arteriosus. V. Microradiographical observations with ultrasoft x-rays on closure of the ductus arteriosus in the rat and the guinea-pig.
D000818:Animals; D000831:Animals, Newborn; D004373:Ductus Arteriosus / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D004547:Elastic Tissue / Q000032:analysis; D006168:Guinea Pigs; D007036:Hypothermia, Induced; D008852:Microradiography; D009119:Muscle Contraction; D051381:Rats; D013045:Species Specificity; D013194:Staining and Labeling