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Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

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In 1844, Charles Goodyear obtained the first patent for a rubber condom.

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Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

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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.

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The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

Examples of covalent modifications that occur to the amino terminal tails of histone proteins. The a Examples of covalent modifications that occur to the amino terminal tails of histone proteins. The a
A cross of sweet peas showing that independent assortment does not always occur A cross of sweet peas showing that independent assortment does not always occur
Ectopic pregnancies. (a) An ectopic pregnancy may occur in any of the locations shown. Interstitial Ectopic pregnancies. (a) An ectopic pregnancy may occur in any of the locations shown. Interstitial
Peptic ulcer. A peptic ulcer may occur in the stomach (gastric ulcer), as shown here, or in the duod Peptic ulcer. A peptic ulcer may occur in the stomach (gastric ulcer), as shown here, or in the duod
Four cutaneous receptors that occur in human skin. Four cutaneous receptors that occur in human skin.
Summary view of the light reactions as they occur in the thylakoid Summary view of the light reactions as they occur in the thylakoid
Video: HIV replication/ Replication cycle of HIV

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