Seks porno filmpjes erotische massage bij manThis is derived from a prepublication version of a series published in jama. Sources that are ruled out for use on Wikipedia may still be very useful for other purposes. Studies can be categorized into levels of evidence, 8 and editors should rely on high-quality evidence, such as systematic reviews. They seldom make recommendations, but instead explain most effective treatments, potential hazards and discuss gaps in knowledge. "Potential, possible, or probable predatory scholarly open-access publishers". Predatory journals edit An integral part of finding high-quality sources is avoiding articles from journals without a reputation for fact-checking and accuracy. Sources about health in the general news media should, in general, not be used to source content about health in Wikipedia articles but may be useful for "society and culture" content. The Retracted article on dopaminergic neurotoxicity of mdma and the Schön scandal.) Summarize scientific consensus edit Scientific journals are the best place to find both primary source articles about experiments, including medical studies, and secondary sources. It can also be helpful to perform a plain web search rather than one of scholarly articles only. Straus SE, Richardson WS, Glasziou P, Haynes RB (2005).
Evidence-based Medicine: How to Practice and Teach EBM (3rd.). Medical and scientific organizations edit Guidelines and position statements provided by major medical and scientific organizations are important on Wikipedia because they present recommendations and opinions that many caregivers rely upon (or may even be legally obliged to follow). A secondary source in medicine summarizes one or more primary or secondary sources, usually to provide an overview of current understanding of the topic, to make recommendations, or to combine results of several studies. For example, popular science magazines vagina gratis sexfilms massage sexjobs such as New Scientist and Scientific American are not peer reviewed, but sometimes feature articles that explain medical subjects in plain English. Still others, teen kæmpe dildo dansk ordbog betydning such as Medical Hypotheses, publish speculative proposals that are not reliable sources for biomedical topics. Medical guidelines or position statements by nationally or internationally recognized expert bodies also often contain assessments of underlying evidence. 28 Major academic publishers (e.g., Elsevier, Springer Verlag, Wolters Kluwer, and Informa ) publish specialized medical book series with good editorial oversight; volumes in these series summarize the latest research in narrow areas, usually in a more extensive format than journal reviews. Note that journals that have changed names or ceased publication will not be "currently" indexed on medline, but their indexing status, when they were being published, can be viewed under other headings on that same page. The Abridged Index Medicus provides a list of 114 selected "core clinical journals" (this subset of the medical literature can be searched in PubMed using a 'journal categories' filter). 17 Indications that an article was published in a supplement may be fairly subtle; for instance, a letter "s" added porn sex filme gratis amateur sex films to a page number, 18 or "Suppl." in a reference. The Journal of Bone and Joint Surgery. 34 Consequently, they are usually poor sources and should always be used with caution, never used to support surprising claims, and carefully identified in the text as preliminary work. Core basic science and biology journals include Nature, Science and Cell. Other sources edit Reliable sources must be strong enough to support the claim. However, books generally move slower than journal sources, and are often several years behind the current state of evidence. Rosmarakis ES, Soteriades ES, Vergidis PI, Kasiakou SK, Falagas ME (May 2005). These methods are often best when writing about oneself, one's organization or company but may be less so slavin escort prive ontvangst shemale when there is a potential conflict of interest in a research field. A newer source which is of lower quality does not supersede an older source of higher quality.
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