منابع مشابه
Sperm Biology: Size Indeed Matters
Although sperm are typically thought to be small, tadpole-like cells produced in vast quantities, sperm size, form and number all vary tremendously across species. Sperm form ranges from amoeboid or discoid to multiflagellate elongated structures [1]. Even within the more familiar uniflagellate spermatozoa, length varies by several orders of magnitude, from the tiny 28μm long porcupine sperm to...
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Did news coverage of questions about the risk:benefit balance of statins influence their use in the United Kingdom? In a linked paper, Matthews and colleagues (doi:10.1136/bmj.i3283) assert that it did, describing “impact,” “the effect of negative media coverage,” and “a transient rise in the proportion of people who stopped taking statins.” They assumed causality but did not prove it, despite ...
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ژورنال
عنوان ژورنال: Journal of Thoracic Oncology
سال: 2019
ISSN: 1556-0864
DOI: 10.1016/j.jtho.2018.11.004