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Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).
If you could remove all of your skin, it would weigh up to 5 pounds.
More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.