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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.
The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.
Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.
The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
![Apply effleurage and petrissage on top arm. Stand in front of recipient and hold her hand with one ...](https://biology-forums.com/gallery/33/medium_380798_23_08_17_7_22_06_333352124.jpeg)
![Apply superficial friction to the upper and lower back. Stand to one side. Ask the recipient to lean ...](https://biology-forums.com/gallery/33/medium_380798_23_08_17_7_48_42_33372360.jpeg)