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A free, searchable online registry of quality research evidence for public health decision makers, where searching, screening, and rating the systematic review evidence has been done for you. From McMasters University in Canada.
From Canada's National Collaborating Centre for Methods and Tools - studies and reviews related to a particular focused (public health) question and critically appraised. Updated weekly. Has searchable archive.
Great source for reports not in journals or books on aging/the elderly, health financing/insurance, the (US) health care system, maternal-child & reproductive health issues, tobacco & other substance issues, STDs. Also some environmental & disability.