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79Modifying the Rancilio Silvia Espresso Machine
The Rancilio Silvia enjoys tremendous popularity among espresso enthusiasts because it is one of the cheapest machines that is capable of producing high quality espresso. And with a few tweaks, it can be greatly improved...
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43Poliomyelitis Vaccine
The last documented cases of indigenously acquired poliomyelitis caused by wild polioviruses in the United States were reported in 1979. In 2000, an all inactivated polio vaccine (IPV) schedule was...
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61All about Polio Disease
Polio [PO-lee-oh] is a viral disease that can damage the nervous system and cause paralysis. The polio virus enters the body through the mouth, usually from hands contaminated with the stool of an infected...
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