Persistent ductus arteriosus: most probably a primary congenital malformation.


This study was undertaken in an attempt to determini whether there is a distinct histological difference between the human normally closing ductus arteriosus and a pe.rsistent ductus arteriosus. The microscopical investigation was done in 42 specimens ofhuman ductus arteriosusfrom subjects ranging in agefrom 12 hours afterpremature delivery to 32 years. The… (More)

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