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Author Question: Naomi wakes up several hours after a severe blow to her head has rendered her unconscious. She can ... (Read 32 times) |
The familiar sounds of your heart are made by the heart's valves as they open and close.
A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.
There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.