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Cutaneous effects of exposure to polybrominated biphenyls (PBBs): The Michigan PBB incident
(Elsevier, 1982-10)
In 1973 an environmental accident occurred in northern Michigan in which 1000-2000 pounds of the toxic fire retardant polybrominated biphenyl (PBB) was added to the livestock food supply of much of northern Michigan. PBB ...
Strategy hubs: Domain portals to help find comprehensive information
(Wiley Subscription Services, Inc., A Wiley Company, 2006-01-01)
Recent studies suggest that the wide variability in type, detail, and reliability of online information motivate expert searchers to develop procedural search knowledge . In contrast to prior research that has focused ...