Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.
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The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.
A seemingly anonymous well-wisher from the crowd greets President Bill Clinton. When Clinton was ...
Alcoholics Anonymous
In the reaction C(s) + O2(g) CO2(g) carbon is __________.