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Doppler indexes were measured in 14 renal arteries in 13 patients before and after percutaneous transluminal angioplasty to determine if changes in these parameters occurred after the procedure. Angioplasty was technically and clinically successful in 12 cases, and adequate Doppler signals were obtained from 13 of 14 arteries. The pulsatility index,(More)
Conservation management often focuses on counteracting the adverse effects of human activities on threatened populations. However, conservation measures may unintentionally relax selection by allowing the 'survival of the not-so-fit', increasing the risk of fixation of maladaptive traits. Here, we report such a case in the critically-endangered Chatham(More)
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