منابع مشابه
Once and only once.
V enous thrombosis is a fairly common disorder that manifests mainly as deep vein thrombosis of the leg or pulmonary embolism. It affects 1 in 1000 individuals annually and has a substantial mortality rate. 1 Its causes are both genetic (prothrombotic abnormalities sometimes referred to as a group as thrombophilia) and acquired. 2 Among the latter are cancer, female hormone use, and all forms o...
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Awidely perceived requirement for validation of all new specimen collection swabs by the laboratory appears to be the result of misinformation. Neither the College of American Pathologists (CAP) nor regulations through the Clinical Laboratory Improvement Amendments (CLIA) address specifically the issue of swab validation for general specimen collection (1–4). While both regulatory agencies requ...
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The preparation for DNA replication initiation is tightly linked to cell-cycle progression, ensuring that replication occurs only once per cycle. The time is ripe for a molecular dissection of the links between the two processes.
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INTRODUCTION Neurotoxoplasmosis (NT) sometimes manifests unusual characteristics. METHODS We analyzed 85 patients with NT and AIDS according to clinical, cerebrospinal fluid, cranial magnetic resonance, and polymerase chain reaction (PCR) characteristics. RESULTS In 8.5%, focal neurological deficits were absent and 16.4% had single cerebral lesions. Increased sensitivity of PCR for Toxoplas...
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ژورنال
عنوان ژورنال: Nature
سال: 2015
ISSN: 0028-0836,1476-4687
DOI: 10.1038/520295b