Robert Greenwell

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Arsenic is an abundant toxicant in ground water and soil around areas with extractive industries. Human epidemiological studies have shown that arsenic exposure is linked to developmental defects and miscarriage. The placenta is known to utilize vasculogenesis to develop its circulation. The hypothesis tested here states the following: arsenic exposure(More)
Severe hyperkalemia developed in two pregnant intravenous drug abusers during prolonged parenteral magnesium sulfate therapy in the absence of any obvious cause. The serum potassium concentration returned to normal after magnesium therapy was discontinued. Hypermagnesemia, acting through several possible mechanisms, was probably responsible for the(More)
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