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We examined 27 resin casts of foetal liver veins and found three types of connection between portal vein and portal sinus. The most frequent connection was endo–lateral (66.7%), when the end of the portal vein joins with the lateral wall of the portal sinus. The next type was latero–lateral (14.8%). In this type, the lateral walls of the portal sinus and the portal vein join together. The last type...
Lead, cadmium, zinc, manganese, chromium, cobalt, copper, and molybdenum concentrations were measured in 50 samples of placenta tissues. The samples came from Tychy in the Upper Silesian Industrial District (Poland), where the population is exposed to enormously increased levels of heavy metals. GFAAS technique was used. Various methods of ashing samples were examined. Wet ashing under pressure in...
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