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The effect of lead on cardiac β-adrenoceptors was studied. Wistar rats used in these trials were divided into seven groups of ten animals each (A–G). Of these, groups B was given drinking water containing 0.01% lead acetate, group C 0.05%, group D 0.1%, group E 0.5%, group F 1% and group G 2% for a period of 60 days. Group A was given pure water. A radioligand-binding assay fulfilling strict criteria...
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