Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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Medication errors are more common among seriously ill patients than with those with minor conditions.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.
The Meselson-Stahl Experiment
The Redi experiment.
Ivan Pavlov
Humidity Measurement and Gas Flowrate Experiment
Basic Design of the Driving and Cell Phone Distraction Experiment