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BACKGROUND A deficiency of alpha-1 antitrypsin (AAT) can lead to pulmonary disease in middle-aged adults in whom dyspnea management can be a significant issue. OBJECTIVE The research addressed whether short-term oxygen (O2) administration during activities might decrease dyspnea and improve exercise performance in nonhypoxemic patients with emphysema(More)
BACKGROUND Many physicians advocate repeat surgery after cervical conization with a diagnosis of cervical cancer stage FIGO IA1. In a multicenter trial, whether repeat surgery is a necessary therapeutic procedure in the treatment of cervical cancer stage FIGO IA1 was evaluated and a literature review performed. PATIENTS AND METHODS From 1997 to 2006, 156(More)
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